CCC Metadata.db restore - File name greyed out - file in use

Running Big Sur 11.4 on an iMac Pro. One of the regular panics which it unfortunately is giving me wiped out my documents directory. Erased the disk and restored from TM.

The Carbon Copy Cloner tasks were not restored. For some reason the V5 Metadata.db file was never backed up by TM. I had done a CCC clone, and found the file there. When I try to copy it got a "file is in use" and the copy fails. This is strange since the file is on a backup disk so it should not be open.

Going into terminal I did a

cp /Volumes/OWC\ A\ CCC\ Clone/Library/Application\ Support/com.bombich.ccc/MetaData.db Desktop/

That worked, the file is on the desktop. However in the finder it is greyed out, as well the in the CCC file restore selection so I can't chose it.

Is there a way to get rid of the extended attribute which is causing the problem? I have been working with Mike at CCC (who, as always, is very responsive and helpful) and we are stumped. Apple support has referred the issue to engineering. Wondering if anyone else has seen the problem - a file grayed out and inaccessible.