Geometry issues

Hi,

I’m new to RE but have been using it for the last 3 weeks. I’m totally loving it and having tons of fun building the world but have recently ran into some major issues. Not sure if it was due to the update from 4.12 to 4.14 or purchases I made from the Marketplace but I’m having problems with the brushes ever since then. Attached are a few images I took from my screen. Whether I’m starting a new geometry - additive or subtractive mode - the other actors/brushes would get “corrupted”. A slight move of an actor or raising of a brush will also corrupt the other actors.

As a test, I created a new project and the brushes seems to be working fine.

I would hate to loose my project and the time I spent on it. Help please; I need some advice. I’m on a roll and would hate to slow down now. Thank you, Liza

To clarify, I’ve created a 3-story building. The problem started on Sunday 1/15.