A lot of these glitches are around lately and Im happy they start do get awairness because they are accualy around for quite some time here is a list of all Sombra bugs and exploits I know so you can report then correctly and know how they work: Even more Sombra Bugs in 1.26/1.27/1.28 [With Video's]
Btw. When Sombra is in a wall or in the payload you can pull her out with mini or normal grav from Orisa or Zarya and can prevent her from entering again woth the knowlegt from my list
Hope I could help
~ SchWiniX