diff --git a/net/web/src/User/Conversation/AddTopic/VideoFile/VideoFile.jsx b/net/web/src/User/Conversation/AddTopic/VideoFile/VideoFile.jsx
index 89bb74e1..93b9ddba 100644
--- a/net/web/src/User/Conversation/AddTopic/VideoFile/VideoFile.jsx
+++ b/net/web/src/User/Conversation/AddTopic/VideoFile/VideoFile.jsx
@@ -18,6 +18,9 @@ export function VideoFile({ url, onPosition }) {
   const onSeek = (offset) => {
     if (player.current) {
       let len = player.current.getDuration();
+      if (len > 128) {
+        offset *= Math.floor(len / 128);
+      } 
       seek.current += offset;
       if (seek.current < 0 || seek.current >= len) {
         seek.current = 0;
diff --git a/net/web/src/VirtualList/VirtualList.jsx b/net/web/src/VirtualList/VirtualList.jsx
index 21bfceea..1e8afd96 100644
--- a/net/web/src/VirtualList/VirtualList.jsx
+++ b/net/web/src/VirtualList/VirtualList.jsx
@@ -316,6 +316,7 @@ export function VirtualList({ id, items, itemRenderer }) {
         if (height) {
           growCanvasHeight(height * 3);
           viewHeight.current = height;
+          updateCanvas();
         }
         return (
           <VirtualListWrapper onScroll={onScrollView} onWheel={onScrollWheel}>