It is a little surprising indeed and we are investigating why it’s happening to make sure it’s nothing systemic.
Apologies for the delay, but now I’ve dug a little deeper (submission #113079 by @RHG) and it seems that this is related to loading and saving xgboost models.
The correct way to save and load these models is using the internal functions for the library:
Could you all please ensure that this is how your models are being saved and loaded? The issue might be fixed if we do that.