At work I have been using QGIS and storing all my data in GeoPackages for the past year. GeoPackages don't allow feature datasets to my knowledge, so when my office got ArcGIS Pro I was excited to start better organizing our data. I work for a local government agency so being able to create datasets for infrastructure, projects, and administrative boundaries with feature classes nested within the was hugely appealing.
It was easy enough to do the conversion and I now have everything organized in a file geodatabase. I am able to load and view everything while using ArcGIS Pro. However, I still have coworkers who use QGIS and they are having trouble. I was able to replicate their issues on my own copy of QGIS as well. It seems that about half of the feature classes, when added to QGIS, show 0 feature and nothing in the attribute table. However, when I am using ArcGIS Pro I am able to see and interact with all the features normally. There does not appear to be any sort of pattern that I can discern as to why some feature classes have this issue and others do not.
Through my research it does not appear there should be any issues with QGIS reading file geodatabases created by ArcGIS Pro. Does anyone have any idea for settings I should be looking at as a potential cause for this issue?