It had changed itself to Restricted File Growth (MB) 2,097,152.
I changed this again to Unrestricted and it resets itself to the Restricted File Growth (MB) settings above.
That's normal, That's also 2 TB, I do hope you don't have a 2TB log file.
Can you try taking a native backup, not via some app just a plain BACKUP DATABASE ... and see what messages you get?
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: Discussions on DB performance with occasional diversions into recoverability
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