No worries. I try to hunt down and remove any warning messages, so it is great that you gave me the repro steps for this. Checking for validity was not the correct thing to do in BP_GridActor, where one should rather check whether the array of BP_GridManager actors has a size of one. For the child actors of BP_GridActors we can just check if the GridManager reference is valid, however. Like so:
I’ve added this to my WIP branch, so it will be fixed in the next update. These are not warnings that should have any effect on gameplay.
Hmm, not sure. I have not really worked with cinematics in UE4 at all. You can create actions for the action queue and set them to play “WithPrevious” to create some cinematic-like stuff, but I have not really tested this out. I imagine the easiest would be to create cinematics using sequencer the old-fashioned way and not use any toolkit-specific stuff for it other than passing tile locations. What specific issues did you encounter?