There was a bug where the lock-screen and Dynamic Island timer could show a different exercise's rest length than the one you actually completed a set for, so a short rest could jump to a much longer countdown. A fix for this has shipped. If you're still seeing a mismatch after updating, that's worth reporting. It may point to a case the fix doesn't fully cover yet.
What to do
- Make sure you're on the latest app version: Settings → Check for Updates.
- After updating, complete a set from the lock screen or Dynamic Island and compare its countdown to the in-app timer: they should agree.
- If you still see a mismatch, email support@kensoforge.com with the two exercises involved and the rest length each one showed. That detail is what we need to track down a remaining case.
See the rest timer for how rest durations are set per exercise.