Attempting to take a screenshot via the HighResShot node does not seem to do anything if the game is being tested via standalone. This is a big deal since PIE won’t listen to rendering commands (seems to only obey scalability settings, which I don’t like messing with).
I have tested, and, if I use the command “HighResShot 2” (or whatever it was), it does create the image in the expected folder. Which is the same one that the node uses if you test the game via PIE.
TL;DR: High Resolution Screenshot NODE does not function if the game is tested in Standalone mode instead of PIE.
100% Reproduction rate with ~16 tests.