Bug probably related to Win10 scaling

I had it for some days when used 4k tv as monitor. Trial version didn’t show dialog about purchasing, instead after some time renoise hanged when I pressed play or undo buttons. Then I plugged fhd monitor and bug went away. Then I switched back to 4k tv, but bug didn’t return. I don’t remember exact windows scaling settings I had when bug occurred. So I can’t reproduce it, sorry.