It is probably some configuration issue in your CAPX - easiest way is to follow mekonbekon's advice of spawning both a pillar and an invisible vertical line pinned or set (every tick) to the pillar X coordinate. That way you pass the pillar visually but the point comes from "killing" or "destroying" the invisible line upon collision that the player never sees.

Good luck!

If i understood you correctly you want to bounce on some objects but not on others.

You could then either:

A) Turn off bounce and manually simulate bounce only on the object you want, such as giving X speed or force on collision with specific objects.

B) Turn on bounce but for the objects you want to avoid set a detection that once your player comes close to a certain object he gets pushed to the side or disable his movement in that direction while allowing him to walk away or set that speed to zero which you did not want but only for 1-2 seconds

To my understanding your class selection will be 1 dedicated layout where you have a background from your picture and you can put either the class sprites or invisible sprites for the player to select his class.

Then have some global variable which regulates which class is playing.

Upon pressing whichever button/sprite the player you set the global variable to that class + you send the player to whichever next layout such as level 1.

You then use, I hope, an invisible sprite for your player covered by the pinned player graphic. So depending on which class was selected you simply pin that graphic on your player.