Hey, only fix that worked was basically reinstalling the game. If you can't redownload you can use what I used below to avoid redownloading nearly 40gigs
First copy out your Warframe folder from the steam>steamapps>common, also grab "appmanifest_230410" from steam>steamapps, then uninstall. Then:
1) Copy the file Launcher(launcher.exe) present in Warframe>Tools
2) Paste it somewhere else in your computer.
4) Run the Launcher and select location of installation and close it as soon as it starts downloading(when it reaches checking for new content)
3) Copy all files and folders present in the original Warframe folder from steam
4) Paste them in this location "Warframe>downloaded>public" in the new install location and replace any files there
5) Run the Launcher again. It'll detect the files and finish updating the game
6) After its done, copy the files from public then recreate your steam warframe folder and paste the files there.
7) Copy the launcher.exe and paste in steam>steamapps>common>warframe>tools
8) Return the appmanifest_230410 to steam>steamapps
9) Open steam and launch Warframe
A long process I know, so if you have the data and the time, you may as well just redownload instead.
Also DE, this issue repeated itself with the latest hotifx that released a few hours ago SO I had to redo everything here all over again.
Please fix this so we don't have to do this with every hotfix/update