[8.0R1] Division by zero (When copying folder to USB Disk)

[kanaifu]

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Total Commander 8.0Я1
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Division by zero.
Division by zero
Windows 7 SP1 6.1 (Build 7601)

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

Stack trace (x64):70FD12
7B3E3A 7B3B47 7D01F8 7B33EB 7B9F3B 7D115F 7BACBF 4F99F6
81B200 81D2EF 68AA6A 68AFE8 69684B 6845F5 7AB9B7 7AB9ED

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Continue execution?
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Yes No
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[kanaifu]

viewtopic.php?t=30902

looks like identical to this one.

and yes:

I did have 32-bit underlying install on top of which I installed 64-bit one.