AdobePDF.dll, error code 0x800B0101 causing print spooler service to stop

Acrobat 2020 on Win10 21H2. I have multiple user reporting printing problems. The print spooler service is stopped. Restarting it solves the problem temporarily, but it returns in a day or two.

Digging into the event logs on one so far, I noticed it seems the problem is being caused by adobepdf.dll (error code 0x800B0101; google results for that seem to be Windows update errors). All of the user's recent print spooler errors are pointing at that file. The crashes are mostly a day apart. Anyone know anything useful?

For now, as a band-aid, I've altered the Print Spooler's Recovery tab settings and changed the "Reset fail count after" to 1.

I searched and couldn't find anything definitive on what a 0 value means for "Reset fail count after" means. One post, and only one, claims it means never keep track of the count. But if that's true, it should always restart (1st failure always get triggered which is restart), which I know isn't true, since for multiple users, I had to restart it myself.

I believe 0 means never reset the count, except maybe if the computer has been rebooted. That would match the logs and behavior I've seen.