Alter Ult Placement Glitch

So i was playing team death match and my alter teammate had placed her ult down and when i respawned fork dying i took the portal and it put me inside the walls along with anyone else who took the nexus. Im not sure if your invincible in the walls but i know you can’t damage anyone outside the walls. I know if you place an alter portal with your camera inside an object it can place you above an object through floor But i have two clips of it.