Doing my first playthrough of AMC TC, currently on ep2. in the Arsia Mons colony level, after completing the first part where you play as Sang i simply lost all my weapon upgrades, all of James weapons where back to default. I aborted the mission, went to base and sure enough, the upgrades show as if i hadn't buy them, i had my upgraded smg during the Sang part of that mission. Also, i noticed that when i first picked up the AUG as James it showed 100 ammo in clip, but after reloading it it went down to 30, so it happened during the character switch.
UPDATE: Mikko weapons are also back to default, i also checked Sang weapons and those didn't lost the upgrades.
in the base, Micky weapons are still upgraded, but i dunno if ill lose those when his part of the mission starts, will update. all other characters seem to be fine.
UPDATE 2: Micky also lost all weapon upgrades, idk what happened.
I'm playing with the 3.6.4 patch, installed it before even starting ep 1.
![](https://forums.duke4.net/public/style_images/cgs/_custom/switch.png)