Whenever I put an item in my Compact Chest, the item visually disappears until I leave the chest and reopen it. If I have multiple items in there and I pick up one of them, all the other items seem to disappear until I reopen the chest.

Can you confirm whether you're using SkyFactory 4?

This bug was only ever introduced by Compatched, so yes, he is.

Yes, that's right.

Ok well I guess it's fixed for now.