forward strong/smash and side special can go through the wall in the training ground, although i dont know if this is intentional

Kinda-ish
Her teleport is true, so in that she can pass through walls or solid platforms
I am aware that she can also use that to like camp behind the walls of a stage like training mode.
But that's also something that will most likely never occur in a serious game so i don't see the need to "fix" this issue.
Let alone i have no idea on how to prevent it, since it is actually the exact thing the move is supposed to do.

But still thanks for the report. ^^