Teleporting (with shadowsteps/steal/etc.) while picking up a bundle (mostly conjured weapons/banners) will cause your character to glitch out; you won’t be able to use any skills or interact with anything until you:
- relog
- get dazed/stunned/feared/etc.
This issue, although it rarely occurs, is gamebreaking in the middle of combat – especially in PvE dungeons where you can’t always get yourself CC’d; then your only option is to relog.