There are quite a few difference between editor and standalone, and then again between both of those and packaged.
There are various docs about the initialization order ( which is different ), but not much point in reading them, apart from academic interest, because you aren’t going to code different branches depending on what mode you’re in :), you just need to code so that it doesn’t matter.
I can speak directly to this
You need to code things on tick to take account of the fact that tick is different on every machine. If you’re running with an Nvidia 30 series, and your mate loads the game on a total potato, everything will happen much more slowly, unless you multiply by delta time
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I can’t say much about.
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Ditto.