FBA fails after October Update

Copper Contributor



after i install the october 2022 cu for sharepoint on prem 2019 sites with fba will not work. I found the error in eventlog-application

"An exception occurred when trying to issue security token: The security token username and password could not be validated.."


i create an new site with fba, the same result.


I think a problem with security token service, but i found nothing.


I hope someone can help


best wishes



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