You definitely deleted the right cache folder? I know we recently changed from "Squad" to "Squadgame" to maybe you deleted the old folder? There's a "SquadUAT" there too for the public testing branch.
Tried both with no change, unfortunately - believe it or not, both screenshots were taken on the Epic preset...
Did some googling' and people were suggesting changing everything to Epic then back again, tried it both mid-round and changing/ restarting the game but no dice
Tempted to go with the good old nuke/ reinstall option at this point.