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Looks like you have an error in your level blueprint coming from an invalid pin in a node. For the full screen issue add a new file DefaultGameUserSettings.ini in Config\ + add:
[/Script/Engine.GameUserSettings]
bUseVSync=True
WindowPosX=-1
WindowPosY=-1
bUseDesktopResolutionForFullscreen=True
FullscreenMode=0
LastConfirmedFullscreenMode=0
Version=5I have gone through the spaghetti of all the blueprints and Event Graph. The compiler says Good to go. Could you elaborate on what you mean by an invalid pin?
Your script is slightly different from what I already have, seems functional with the LastConfirmedFullscreenMode=0 as the answer. Though, I can’t test it without being able to package.
Oh well. An invalid pin (link?) that is not visible to me, is going to take forever to narrow down with brute force. Project ends here. ■■■■. Annoying since it’s probably an easily fixable tiny thing
zimzimdz’ answer is correct. What is not mentioned and leading to the answer, is that the nodes can be selected with fx Ctrl-A and be Ctrl-C → Pasted into a word processor where the Ids of the pins and nodes can be searched for, from the package log. Find the node(s) and delete them, recreate them. Now they work, somehow.
The script didn’t work for fullscreen, but the window is now easier to be maximized. I’d have to roll with that.