Saancreed

Summon /u/DE_Killerkarpfen

Trying to exit the water in this exact spot will cause an animation loop. Should be pretty easy to reproduce, since our entire party went in just to check it out and got stuck as well. Thankfully, /unstuck did allow us to escape.

Some metadata from screenshot's Comment tag:

saancreed@G751 ~/Pictures/Warframe 
0 $ exiftool -comment ./Warframe0003.jpg 
Comment                         : /Lotus/Levels/Proc/Grineer/GrineerOceanAssassinate/EoqYhqfJiQZqAaCZN8ttstVVVWA.lp  Zone: /Lotus/Levels/GrineerOcean/GrineerOceanIntermediateGeysers  P: 100, -3.2, 65  H:56  Log: 8648.011

I am summoned. Thanks for pasting the metadata, very convenient! I'll check it next week.

Fixed now, will be part of big mainline this week.