Locked Jobs disappearing from scheduling board

Recently started schedule locking jobs and forward scheduling them to represent actual start dates/times. We are seeing some of these locked jobs dropping out of the multi resource scheduling board, I can get them to reappear by unlocking, scheduling again and then locking them…but then the next day it will drop off the resource schedule again. Anyone else experience this?

We are seeing the same thing. Version 2023.2. Have you found a resolution?