Export hangs with spinning circle but no error message

Hello @noris ,
may be this issue is related to Roon stopping randomly - #105 by noris

What I did therefore:

I forced a backup:
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Afterwards started a maintenance of my entire library
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DONE:
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Started the Export again
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Export stopped after some minutes at track nr 30, keeps spinning:
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CPU activity was low for some minutes during export, then went to sleep:
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Disk activity stopped also after some minutes:
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Memory usage was never above 64%.

Downloaded Logfile “download_2021-11-20_12-48-56.zip” and stored in the DropBox above

PLEASE HELP!