does reloading resource packs during a run invalidate it, if it ends up being a pb?

How do I download to 1.16 and run multi? is there a guide?

Is there a reset macro for ice boat?

1. When I fullscreen and unfullscreen the turns black for a couple of seconds does anyone know how to fix this?
2. How do I use resource packs with MCSR ranked, I have tried to use a pack I made and it didn't work, this makes sense, but I would like to use a pack that makes the GUI a solid colour like blue but I can't, is there a way to use a resource pack other than the default and programmer art if so where can I find them?

Julti doesn't pause instances when when on wall