Hi there @dobdev , can you tell us what Studio version you’re using?
You can find the info by going to About Roblox Studio.
Can you also clarify if you means a crash (In which Studio closes with the “Roblox Crashed” dialog or just exits to desktop) or a freeze (Roblox stops responding for some finite period of time and then recovers)? Details How to post a Bug Report - #17 by Roblox