Through my automated crash collection for MaxTo I got the following crash report:
V8.12.0.0 - System.ComponentModel.Win32Exception - :Void UpdateLayered():0
I had many custom Windows controls with own resources, so when I create many controls this error is appear. To fix this problem I made Resource file in my library and used outside resources instead of resources on my component code. After that my exception is gone, already tested with 3 times more opened forms and this error gone. So looks like it's a solution.