diff --git a/web/src/board/board.css b/web/src/board/board.css
index 454be46..53faf54 100644
--- a/web/src/board/board.css
+++ b/web/src/board/board.css
@@ -157,5 +157,5 @@ td.k{font-family:var(--font-mono);font-size:12px;white-space:nowrap}
 .card .open-card:hover,.card .open-card:focus-visible{color:var(--accent);outline:none}
 /* слой измерения: карточки шириной CW с высотой по содержимому, невидим */
 .measure{position:absolute;left:-100000px;top:0;visibility:hidden;pointer-events:none}
-.measure .card{position:static}
+.measure .card{position:static;height:auto}
 .measure .card .title{-webkit-line-clamp:unset}
diff --git a/web/src/board/components/BoardCanvas.test.tsx b/web/src/board/components/BoardCanvas.test.tsx
index 909f536..757fe14 100644
--- a/web/src/board/components/BoardCanvas.test.tsx
+++ b/web/src/board/components/BoardCanvas.test.tsx
@@ -1,3 +1,4 @@
+import { useState } from "react";
 import { fireEvent, screen, within } from "@testing-library/react";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";
@@ -85,4 +86,29 @@ describe("BoardCanvas", () => {
     draw({ vis: computeVisible(model, { ...noFilters(), who: new Set(["Никто"]) }, [], "2026-10-14"), emptyText: "Фильтры не оставили" });
     expect(screen.getByText("Фильтры не оставили")).toBeInTheDocument();
   });
+
+  it("сужение выборки при смене фильтра не роняет холст (карточки старой раскладки пропускаются)", () => {
+    const wide = computeVisible(model, noFilters(), [], "2026-10-14");
+    const narrow = computeVisible(model, { ...noFilters(), who: new Set(["Иванов Иван Иванович"]) }, [], "2026-10-14");
+    expect(narrow.nodes.length).toBeLessThan(wide.nodes.length);
+    function Harness() {
+      const [vis, setVis] = useState(wide);
+      return (
+        <>
+          <button onClick={() => setVis(narrow)}>сузить</button>
+          <BoardCanvas vis={vis} byDate={false} snap today="2026-10-14" store={store} sprintSel={new Set<string>()} emptyText="пусто"
+            onToggleLane={vi.fn()} onMoveLane={vi.fn()} onColWidth={vi.fn()} />
+        </>
+      );
+    }
+    renderWithProviders(<Harness />);
+    expect(board().querySelectorAll(".card[data-key]")).toHaveLength(wide.nodes.length);
+    fireEvent.click(screen.getByText("сузить"));
+    expect(board().querySelectorAll(".card[data-key]").length).toBeLessThanOrEqual(narrow.nodes.length);
+  });
+
+  it("полоса дат получает ширину обёртки доски", () => {
+    draw({ byDate: true });
+    expect((document.querySelector(".dates-in") as HTMLElement).style.width).toMatch(/px$|^0/);
+  });
 });
diff --git a/web/src/board/components/BoardCanvas.tsx b/web/src/board/components/BoardCanvas.tsx
index 35d0565..f213dda 100644
--- a/web/src/board/components/BoardCanvas.tsx
+++ b/web/src/board/components/BoardCanvas.tsx
@@ -135,7 +135,7 @@ export function BoardCanvas({ vis, byDate, snap, today, store, sprintSel, emptyT
   return (
     <>
       {byDate && !empty && layout?.dateCols && placed && (
-        <DatesBar cols={layout.dateCols} width={placed.width} scrollLeft={scroll.left} inRef={datesInRef} onColWidth={onColWidth} />
+        <DatesBar cols={layout.dateCols} width={placed.width} scrollLeft={scroll.left} wrapW={scroll.wrapW} inRef={datesInRef} onColWidth={onColWidth} />
       )}
       <div className={"stage" + (byDate && !empty ? " bydate" : "")}>
         <div className="wrap" ref={wrapRef} onScroll={syncScroll}>
@@ -153,7 +153,7 @@ export function BoardCanvas({ vis, byDate, snap, today, store, sprintSel, emptyT
                     targetClass={dragTarget && dragTarget.to === i ? (i < dragTarget.from ? "target" : i > dragTarget.from ? "target-after" : "") : ""}
                     onDragTarget={(to) => setDragTarget(to === null ? null : { from: i, to })} />
                 ))}
-                {Object.entries(placed.pos).map(([k, box]) => (
+                {Object.entries(placed.pos).filter(([k]) => byKey[k]).map(([k, box]) => (
                   <Card key={k} node={byKey[k]} box={box} rel={rel[k]} multiSprint={multiSprint} sprintSel={sprintSel}
                     onPointerDown={onCardDown} onAutoSize={onAutoSize} />
                 ))}
diff --git a/web/src/board/components/DatesBar.tsx b/web/src/board/components/DatesBar.tsx
index 5cccbc4..dda5021 100644
--- a/web/src/board/components/DatesBar.tsx
+++ b/web/src/board/components/DatesBar.tsx
@@ -3,8 +3,8 @@ import { COLW, GRID } from "../constants.ts";
 import { dateText, dateTitle, type DateCol } from "../layout/layout.ts";
 
 // липкая полоса подписей дат над доской: сдвиг — как у горизонтальной прокрутки доски; ручка границы меняет ширину колонки
-export function DatesBar({ cols, width, scrollLeft, inRef, onColWidth }: {
-  cols: DateCol[]; width: number; scrollLeft: number; inRef: RefObject<HTMLDivElement | null>;
+export function DatesBar({ cols, width, scrollLeft, wrapW, inRef, onColWidth }: {
+  cols: DateCol[]; width: number; scrollLeft: number; wrapW: number; inRef: RefObject<HTMLDivElement | null>;
   onColWidth(date: string, w: number | null): void;
 }) {
   const raf = useRef(0);
@@ -28,7 +28,7 @@ export function DatesBar({ cols, width, scrollLeft, inRef, onColWidth }: {
   const cls = (c: DateCol) => (c.cls ? " " + c.cls : "");
   return (
     <div className="dates-bar">
-      <div className="dates-in" ref={inRef}>
+      <div className="dates-in" ref={inRef} style={{ width: wrapW }}>
         <div className="dates-track" style={{ width, transform: `translateX(${-scrollLeft}px)` }}>
           {cols.map((c) => (
             <Fragment key={c.date}>