Can't save hidden state of actors in scene outliner

When restart the project, already the hidden actors (saved in previous project) are automaticaly visible again.

Hey Angel,

Thank you for notifying us that you’re not able to save hidden actors in the scene outliner. I have reviewed our reporting system and I see that there is a feature request already entered for this specific issue. Unfortunately, it hasn’t been implemented into the Unreal Engine and I do not have an estimated time frame of when it will be, or if it will be since it is a feature request. However, if for any reason you need to reference this report in the future, please refer to UE-947


Unreal 4.26 and this issue is still there.