Hello, We have pega 8.8.5 container version running in our eks and using Postgres 14.10 as the backend . Recently we tried upgrading the DB to 15.10 and as per the pega documenation, PG 15 is supported , but for some reason pega pods are not stable . the startup probe keeps failing even with an increased initial delay . the only error log I see is as below. 

main ERROR Unable to locate appender \"JSONAppender\" for logger config \"root\"" }

Thanks

Vik