After this update, in Vallis, occasional frame rate dipping became severe, for example when panning.
from 60 fps down to 20 fps... horribly wrong. !!!
Radeon RX Vega 64, 4K Freesync monitor, Core i7-4790K
Once activating fishing/conservation UI, any mouse movement caused severe stuttering down to less than 5 fps. This continues until the end of the mission. This happened in Vallis, PoE, Any other missions.
My mouse is Logitech G603 Wireless with 1000 Hz reporting rate.
After shutting down the PC and power up again, this does not happen anymore. It seems there was something wrong with my mouse and fishing/conservation UI at the time.
This issue reappeared. After doing conservation for a while 20 minutes or so, the same problem reappeared.
Restarting Warframe fixed it, obviously temporarily.