Project audio files missing due to unexpected datetime in filename

I have projects that were recorded in 2020 on the then-current version of Audacity. When I try to open any of these projects now I get an error message that one of the .au files is missing. For instance, the error says:
Missing project file e08084be.au
Inserting silence instead
After this the entire project opens with silence.
The audio source files are all still available, including the one cited as missing. But they all have the creation date-time stamp inserted in the name:
e08084be (2021_02_28 17_39_56 UTC).au
Is there any configuration that will reenable access to these files? I can probably find a utility to batch rename them, but it seems like a hassle.

Thanks, Bill

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