diff --git a/ui/litellm-dashboard/src/components/lens/investigations/InvestigationsView.tsx b/ui/litellm-dashboard/src/components/lens/investigations/InvestigationsView.tsx
index 56845958ab1..4dc720786fd 100644
--- a/ui/litellm-dashboard/src/components/lens/investigations/InvestigationsView.tsx
+++ b/ui/litellm-dashboard/src/components/lens/investigations/InvestigationsView.tsx
@@ -189,7 +189,7 @@ export function InvestigationsView({ readOnly = false }: InvestigationsViewProps
   return (
     <section
       aria-label="Investigations"
-      className={cn("flex w-full min-w-0 flex-1 flex-col", !browsing && "gap-3 p-4")}
+      className={cn("flex min-h-0 w-full min-w-0 flex-1 flex-col", !browsing && "gap-3 p-4")}
     >
       <Banners
         error={bannerError}
diff --git a/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.integration.test.tsx b/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.integration.test.tsx
index d0fcc108aa1..cd3adaf900a 100644
--- a/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.integration.test.tsx
+++ b/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.integration.test.tsx
@@ -171,7 +171,6 @@ describe("Investigation setup", () => {
     await user.type(screen.getByRole("textbox", { name: "Check 1" }), "Find incomplete reports");
     await user.click(screen.getByRole("button", { name: "Continue" }));
     await waitFor(() => expect(screen.getByRole("button", { name: "Run and monitor" })).toBeEnabled());
-    expect(screen.getByText("1 matching run")).toBeInTheDocument();
     expect(screen.getByText("Research report")).toBeInTheDocument();
     await user.click(screen.getByRole("button", { name: "Run and monitor" }));
     expect(save).toHaveBeenCalledWith(
@@ -340,9 +339,9 @@ it.each(["new", "duplicate"] as const)("blocks a %s investigation until its mode
       : Promise.resolve(gatewayResponse(path, {})),
   );
   renderWithProviders(<InvestigationSetup initial={settings} mode={mode} onClose={vi.fn()} onSave={save} />);
+  expect(await screen.findByText("100% of 1")).toBeInTheDocument();
   await user.click(screen.getByRole("button", { name: "Continue" }));
   await user.click(screen.getByRole("button", { name: "Continue" }));
-  expect(await screen.findByText("1 matching run")).toBeInTheDocument();
   expect(screen.getByRole("button", { name: mode === "new" ? "Run and monitor" : "Run investigation" })).toBeDisabled();
   expect(save).not.toHaveBeenCalled();
 });
@@ -393,14 +392,14 @@ it("appends the next preview page as the list scrolls near its end, then stops a
   renderWithProviders(<InvestigationSetup mode="edit" initial={settings} onClose={vi.fn()} onSave={vi.fn()} />);
   expect(await screen.findByText("Run one")).toBeVisible();
   expect(screen.getByText(/Showing 1 of 2/)).toBeVisible();
-  expect(screen.getByRole("status")).toHaveTextContent("2 matching runs");
+  expect(screen.getByText("100% of 2")).toBeVisible();
   const nextPageCalls = () =>
     proxy.post.mock.calls.filter(([, options]) => (options?.body as { cursor: string }).cursor === "next");
   expect(nextPageCalls()).toHaveLength(0);
   act(() => mockAllIsIntersecting(true));
   await waitFor(() => expect(nextPageCalls()).toHaveLength(1));
   expect(screen.getByText("Run one")).toBeVisible();
-  expect(screen.getByRole("status")).toHaveTextContent("2 matching runs");
+  expect(screen.getByText("100% of 2")).toBeVisible();
   act(() => finishSecondPage());
   expect(await screen.findByText("Run two")).toBeVisible();
   expect(screen.getByText("Run one")).toBeVisible();
@@ -423,7 +422,7 @@ it("fetches one preview for two keystrokes inside the debounce window", async ()
     await vi.advanceTimersByTimeAsync(1000);
     await waitFor(() => expect(previewsFor("ab")).toHaveLength(1));
     expect(previewsFor("a")).toHaveLength(0);
-    expect(await screen.findByText("1 matching run")).toBeVisible();
+    expect(await screen.findByText(/% of 1$/)).toBeVisible();
   } finally {
     vi.useRealTimers();
   }
diff --git a/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.tsx b/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.tsx
index 0c9bb89ddcf..a3a0fe725cc 100644
--- a/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.tsx
+++ b/ui/litellm-dashboard/src/components/lens/setup/InvestigationSetup.tsx
@@ -163,7 +163,7 @@ function SetupEditor({
   const saveLabel = saveLabelFor(mode, repeat);
   const offline = !ready && mode !== "edit";
   return (
-    <section aria-label={TITLES[mode]} className="flex min-w-0 flex-1 flex-col">
+    <section aria-label={TITLES[mode]} className="flex min-h-0 min-w-0 flex-1 flex-col">
       <header className="flex items-center gap-1 border-b pb-3">
         <Button
           variant="ghost"
@@ -194,8 +194,13 @@ function SetupEditor({
           The worker or trace storage is unavailable. Your draft is safe; you can start when it reconnects.
         </p>
       )}
-      <div className="grid min-w-0 flex-1 items-start gap-8 pt-6 lg:grid-cols-[minmax(0,26rem)_minmax(0,1fr)] xl:gap-10">
-        <SetupSteps aria-label="Investigation setup" current={step} onOpen={setStep}>
+      <div className="grid min-h-0 min-w-0 flex-1 items-start gap-8 pt-6 lg:grid-cols-[minmax(0,26rem)_minmax(0,1fr)] lg:grid-rows-[minmax(0,1fr)] xl:gap-10">
+        <SetupSteps
+          aria-label="Investigation setup"
+          current={step}
+          onOpen={setStep}
+          className="lg:-m-1 lg:max-h-full lg:overflow-y-auto lg:p-1"
+        >
           <SetupStep id="activity" heading="Activity" description="Which runs to review" summary={<ActivitySummary />}>
             <ScopeFields {...activity.scope} />
             <SampleFields eligible={activity.preview.page.eligible} />
@@ -232,7 +237,7 @@ function SetupEditor({
           noun="run"
           storageKey={FINDING_PANEL_WIDTH_KEY}
         >
-          <MatchingActivityPreview {...activity.preview} className="min-w-0 lg:sticky lg:top-0" />
+          <MatchingActivityPreview {...activity.preview} className="min-w-0 lg:max-h-full" />
           <Inspector.Panel label="Run details" testId="run-panel">
             {(run: TraceRef) => (
               <TraceEvidence
diff --git a/ui/litellm-dashboard/src/components/lens/setup/MatchingActivityPreview.tsx b/ui/litellm-dashboard/src/components/lens/setup/MatchingActivityPreview.tsx
index 8f3147cef6b..b8dbe23f4b0 100644
--- a/ui/litellm-dashboard/src/components/lens/setup/MatchingActivityPreview.tsx
+++ b/ui/litellm-dashboard/src/components/lens/setup/MatchingActivityPreview.tsx
@@ -1,7 +1,6 @@
 "use client";
 
 import { memo, useMemo, type ComponentProps } from "react";
-import { RotateCw } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { cn } from "@/lib/cva.config";
 
@@ -72,31 +71,14 @@ export function MatchingActivityPreview({
     [pickedIds, togglePick],
   );
   const shown = status.ready || status.stale;
+  const showTable = status.loading || (shown && !status.error && runs.length > 0);
   return (
     <section
       aria-label="Matching activity"
       data-slot="matching-activity-preview"
-      className={cn("self-start overflow-hidden rounded-lg border bg-card", className)}
+      className={cn("flex flex-col self-start overflow-hidden rounded-lg border bg-card", className)}
       {...props}
     >
-      <header className="flex items-start justify-between gap-3 border-b px-4 py-3">
-        <div className="grid min-w-0 gap-0.5">
-          <p className="text-sm font-semibold tabular-nums" role="status">
-            {status.title}
-          </p>
-          <p className="text-xs text-muted-foreground">{status.windowLabel} · Previewing is free</p>
-        </div>
-        <Button
-          variant="ghost"
-          size="icon-sm"
-          className="-mr-1.5 text-muted-foreground"
-          aria-label="Refresh matching activity"
-          onClick={status.refresh}
-          disabled={!status.ready}
-        >
-          <RotateCw className={cn("size-3.5", (status.loading || status.stale) && "motion-safe:animate-spin")} />
-        </Button>
-      </header>
       {status.ready && status.error && (
         <p role="alert" className="px-4 py-3 text-sm text-destructive">
           {status.error.message}{" "}
@@ -113,8 +95,8 @@ export function MatchingActivityPreview({
           </p>
         </div>
       )}
-      {(status.loading || (shown && !status.error && runs.length > 0)) && (
-        <div className="flex max-h-[calc(100dvh-16rem)] min-h-0 flex-col">
+      {showTable && (
+        <div className="flex max-h-[calc(100dvh-16rem)] min-h-0 flex-1 flex-col lg:max-h-none">
           <PreviewTable
             traces={runs}
             isLoading={status.loading}
diff --git a/ui/litellm-dashboard/src/components/lens/setup/useMatchingActivity.ts b/ui/litellm-dashboard/src/components/lens/setup/useMatchingActivity.ts
index 661929df086..8384e717c16 100644
--- a/ui/litellm-dashboard/src/components/lens/setup/useMatchingActivity.ts
+++ b/ui/litellm-dashboard/src/components/lens/setup/useMatchingActivity.ts
@@ -5,7 +5,6 @@ import { useInfiniteQuery, useQueryClient } from "@tanstack/react-query";
 import { useFormContext, useWatch } from "react-hook-form";
 import { lensKeys, lensQueries } from "../data/queries";
 import { useLensApi } from "../data/LensServices";
-import { durationLabel } from "../model/format";
 import type { Execution, Sample } from "../model/types";
 import type { TraceSummary } from "../traces/types";
 import { useDebouncedValue } from "./useDebouncedValue";
@@ -26,8 +25,6 @@ export interface ScopeOptions {
 }
 
 export interface PreviewStatus {
-  readonly title: string;
-  readonly windowLabel: string;
   readonly ready: boolean;
   /** No results yet for any search: the table shows skeleton rows. */
   readonly loading: boolean;
@@ -79,27 +76,11 @@ function validScope(scope: Selection): boolean {
   return validWindow(scope) && validSampling;
 }
 
-function previewTitle(
-  state: { pending: boolean; validWindow: boolean; valid: boolean },
-  data: PreviewPageData | undefined,
-): string {
-  if (!state.validWindow) return "Choose a history window between 1 hour and 365 days";
-  if (!state.valid) return "Complete your sampling settings to preview matches";
-  if (state.pending) return "Finding matching runs…";
-  if (!data) return "Preview unavailable";
-  return `${data.eligible.toLocaleString()} matching run${data.eligible === 1 ? "" : "s"}`;
-}
-
 function manualSelectedCount(selection: Selection): number {
   const sampled = Math.ceil((selection.execution_ids.length * (selection.sample_percent ?? 100)) / 100);
   return Math.min(sampled, selection.sample_size ?? Infinity);
 }
 
-function windowLabel(selection: Selection): string {
-  if (!validWindow(selection)) return "Choose a valid history window";
-  return `Last ${durationLabel(selection.lookback_hours ?? 24, "hours")}`;
-}
-
 function scopeOptions(selection: Selection, asOf: string, executions: readonly Execution[]): ScopeOptions {
   const endMs = Date.parse(asOf) || Date.now();
   return {
@@ -161,8 +142,6 @@ export function useMatchingActivity(): MatchingActivity {
     scope: scopeOptions(selection, asOf, executions),
     preview: {
       status: {
-        title: previewTitle({ pending, validWindow: windowValid, valid }, firstPage),
-        windowLabel: windowLabel(selection),
         ready,
         loading,
         stale,