Dump your logs here.

If the issue is particularly strange, or you can reliably reproduce it, please

1. go into the debug settings in-game,
2. scroll near the bottom of the category till you find "Debug: UD Modding Toolbox", and
3. turn the debug verbosity slider up to 4.
4. Reproduce the issue and dump the logs here.

Make sure you turn the slider back down before continuing to play, the excessively verbose logging can sometimes cause lagginess if there's a lot being logged at once.