Sorry about that, the two things were meant separately: If you can get the problem to appear while having STTRACE=db active, that would be helpful. Running with STRECHECKDBEVERY=1s is to try and get rid of the problem (which I am glad to hear it did), no need for logs there, debug or not.
I assume that’s the time to 1970: We set the created time to 0 if we want to force recreate metadata. Which should probably be handled more nicely on a user visible log line but nothing to worry about 