08.09.2026, 21:28
Found it, thanks for the error report — it had exactly the evidence I needed.
The bug: when tagging a batch of photos, each tagged photo pushes a table-update notification from a background thread instead of the UI thread. That collides with the profile/elevation chart repainting on the UI thread at the same moment, corrupting its internal data and throwing an exception. Once that exception hits, the batch silently stops making further progress — the remaining photos stay "taggable" with no error shown. It's timing-dependent, which is why it doesn't always fail at the same photo, and why restarting sometimes lets you tag a few more before it happens again.
Fixed now — the update is properly deferred to the UI thread, and I added a regression test around the fix. It's already in the rolling prerelease build: https://releases.routeconverter.com/prerelease/ — grab that if you want the fix now, otherwise it'll land in the next stable release and I'll post here when it's out. In the meantime, if you hit the same stall again, tagging in smaller batches (~10-15 photos at a time) should avoid triggering it, or just retrying "Tag Photos" a couple more times on the leftover photos will get there without a full restart.
Thanks again for reporting it and sending the logs.
The bug: when tagging a batch of photos, each tagged photo pushes a table-update notification from a background thread instead of the UI thread. That collides with the profile/elevation chart repainting on the UI thread at the same moment, corrupting its internal data and throwing an exception. Once that exception hits, the batch silently stops making further progress — the remaining photos stay "taggable" with no error shown. It's timing-dependent, which is why it doesn't always fail at the same photo, and why restarting sometimes lets you tag a few more before it happens again.
Fixed now — the update is properly deferred to the UI thread, and I added a regression test around the fix. It's already in the rolling prerelease build: https://releases.routeconverter.com/prerelease/ — grab that if you want the fix now, otherwise it'll land in the next stable release and I'll post here when it's out. In the meantime, if you hit the same stall again, tagging in smaller batches (~10-15 photos at a time) should avoid triggering it, or just retrying "Tag Photos" a couple more times on the leftover photos will get there without a full restart.
Thanks again for reporting it and sending the logs.
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Christian
Christian