Thanks for the bug reports!
Ill look into all of them.
The last one is a bug with the animations system for a lot of the older animations. I think the newer ones dont have the same issue and the older ones that do have it are being replaced with updated art over time.
I'll see if I can get it fixed faster but the issue involves rpgmaker's own engine having some issues loading images at runtime. Without porting it to the new system it will take a while to fix these older ones, and porting the older ones without updating the art at the same time will take a lot of devtime that will have to be repeated a second time for the updated artwork as well.
I'll do some testing and try to get some bugfixes in soon!