Weird baking light artefacts

Hello, I have a problem with light baking. When I run baking, for a second everything is fine, but then it replace nice baked light with totally different wrong colors.
dbwqx9
I don’t have any errors in console.

Please, help me :c

Anybody? Please.

Bump :c

With realtime GI no problems at all.

Resolved my moving to dedicated solution from asset store. Meh.