I think a T3 item upgrade and alternate path from juggernaut from enduring speed would be great. The T3 item doesn't necessarily have to be the shrink ray, but the item adds a passive that allows you to dash-slide or slide into the grates, or perhaps the passive is you shrink while sprinting.
This happened to me my first game today, had to restart the game and then try reconnecting like 2 or 3 more times then it finally stayed in the game. Luckily they kept the game paused 'til I loaded in.
I think you can either turn the shader cache off and restart, the renable it and restart again, or you can go to %appdata%\local\nvidia\DXcache\ and delete the stuff in there, deadlock's shader file should be ~260-270mb in size