Hello I am encountering weird behaviour can't really remember when it started but it is annoying.
Lag happens once in a minute and may happen 3-4 times in a row with 2 sec delay
Lag lasts 1 second and while lagging editor is frozen while cursor is fine
Lag appears when it has something to render, on empty viewport looks fine
It is much more noticeable when I switch between Setup/Animate
It can happen once in a while even if I dont press anything or move mouse just with looped animation.
It happens with 3.8, 4.0 Spine versions
One thing that I played with scaling interface to adjust new 4k Monitor and it seems that affects somehow to the frequency of the lag but not sure.
My PC is very powerful (thanks to Spine $)
Have installed latest GPU Driver
And have 4K monitor (this one is new maybe it is the cause)
Sending video to support