First TestComplete Version 12.42 does not show this behavior on the same machine.
This is an virtual Machine, I only connect via RDP, therefore I can't check or change scaling .
But scaling should not be "exotic", there are hundreds of identical Systems in use in our company.
(And the service provider for all our virtual systems is not even telling me the setup-values,
there is no problem with Microsoft-Applictions.
On the other physical machine I tried different scalings 100, 125, 150%.
There Keyword Editor appearance is always fine - regardless the chosen scaling.
So the appearance problem might be releated to "virtual system" settings, but I really cant check.
George