Beta7 Copy or Delete in Background Problem

[ebolax]

I'm using TC 11 B7. I get this error when I do copy files (F5) or delete files (shift + delete) and click "background" button.

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Total Commander 11.00b7
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Access violation.
Access violation
Windows 10 Professional 10.0 (Build 19045), base: 0400000

Please report this error to the Author, with a description
of what you were doing when this error occurred!

Stack trace (x64):B25DD0
7FF8C188E858 354F4A0
Press Ctrl+C to copy this report!
Continue execution?
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Yes No
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And if I click Yes, job is continue but I can't see copy or delete process window.

[ebolax]

This problem is gone after close and reopen Total Commander by the way.