Completely stuck- Bug

[Mautosder2.]

I did a mission with a few other people, public search, a defense in the void, playing frost (in case thats relevant). Someone has left the group in the last rotation, but it didnt migrate.

The next two waves worked as they should, until my game started lagging slowly, then into extrem levels. Then I just couldnt do anything anymore all of a sudden. I could only walk on one spot forward, not use abilities, shoot or jump. After getting knocked down and revived, i could run on one spot. My team carried me through the rest of the rotation, and I didnt even get a punishment for not shooting stuff, but this would be a serious softlock for anyone playing solo.