Hi @Eugen, this issue seems very similar, or at least to be related to a Rhino issue you reported some time ago: Dimension Shift With Detail Window Activation/Deactivation - #19 by Eugen
We will revise it back just in case VisualARQ has something to do with it and we can help to fix it.
As mentioned in the other Topic, it looks like if you disable the INT osnap, the problem doesn’t occur.