After our equity plan amendment, FMV seems to be pulling from the wrong date

We amended our equity plan to update the share class. Now when we look at Manage Valuations, some of our older FMVs are showing the wrong value. It looks like they're pulling from the new share class instead of what was in effect at the time of the valuation.

Nothing changed on the 409A side. The only thing that changed was the plan amendment.

Has anyone run into this? Trying to figure out if it's something we set up wrong or if there's a known issue with how FMV resolves after a plan change.