Thanks everyone for confirming, especially for the details about how it behaves in new vs old chats and that Reload Window doesn’t help.
Confirmed, this is the same bug with clicks in the diff or Changes block. It’s on our side and we’re already tracking it. I can now see it also affects macOS thanks to @Mark4, and I’ve added that to the report. I can’t share an exact ETA for a fix yet, but I’ll post an update in the thread as soon as I have one.
For now the workaround is the same on both platforms: open the file via Ctrl+P on Windows or Cmd+P on macOS, or open it from the sidebar. The changes are still there, it’s only the navigation from the block that’s broken.
One quick note on thread hygiene: if your Changes list doesn’t show up at all after agent edits, not just that it can’t be clicked, that’s a different issue. It’s better to track that in a separate thread, there’s already one here: Agent "Changes" list sometimes missing; blocks not clickable after restart (Windows, 3.10.17)