Tips

The Item Ground Tooltip while holding ALT is slowing down the Performance?

• Try to increase the update interval: WBP_ItemGroundTooltip-> SetActive-> increase the "Time" input of the "Set Timer By Function Name" to 0,01 (it's at 0,001 by default).

I can’t move my Top-Down Character!

• Be sure bAllowClientSideNavigation is set to true in the Project Settings (DefaultEngine.ini)

• NavMesh is also required to be able to move the Top-Down character

• You may have to move the NavMesh a bit in the example project to get it to recalculate!

I got UStruct issues after making changes to a Blueprint Structure!

• To prevent broken references in the Blueprint System of the Unreal Engine, be sure to only save the Structure file you made changes on and close the editor without saving any other files (Enums are safe to save). This is an issue that can occur when working with Structures in Unreal Engine.

• If you already have the issues then try to refresh all nodes on each file that gives an error by hitting File -> Refresh all Nodes.

Source: https://eeldev.com/index.php/edit-blueprint-ustructs-unreal-engine/