[split] Wrong size of HwndHost-ed controls

[Davider]

Sometimes there are black borders visible on the right and bottom sides of the panel, as shown in the screenshot below.
Is there a command similar to a soft restart like QM(shutdown -2)? This would be very useful. Linqpad has also added it for releasing memory and solving some strange minor issues.

https://i.ibb.co/68K5ks7/err.png