Rhino 6 line explosion Mac bug?

I’m using Rhino 6.35 for Mac with no plugins. Every once in a while this happens. If I restart Rhino it usually fixes the problem. If not then closing all other 3D software (Lychee, etc) then restarting my mac fixes it. However, its still a bug. I’m afraid that one day it wont be able to fix. Has anyone else seen this? How is it resolved permanently?

Upgrading to Rhino 8?

Honestly, If I’m were to upgrade it would be to IronCAD. The only reason is $$$$