Gray "mask" over most of the screen on first start up 3.26

[therube]

Gray "mask" over most of (oh say 85%) the Duplicate Cleaner screen on first start up of v3.26.
As I switched tabs, the mask persisted.
Closed it down (which it did quickly) restarted & I didn't see the issue again.
So I'll chalk it up to, one of those things.

Though when I mouse over the tabs, they kind of "flicker".
Didn't do that before & I don't consider it an "issue", just mentioning because it is something that is different.

[DigitalVolcano]

The mask probably relates to the position of the main list - it's a separate control loaded from an external library, so it looks like for some reason it was jammed or still loading up when you started the program.