I had this error in the past, I thought it was due to mods but maybe not since you tried it on 2 different machines (I'm assuming you didn't download mods on the 2nd machine, but who knows).
Anyway if you'd like a workaround, going to the Deadlock replay downloads folder in your file explorer...
Are you talking about the max ammo buffs from golden statues? I tested this and can't get it to work. Are you saying your gun will start reloading no matter what as soon as you pick up the boon/buff?
Just in case this was causing you to restart your game or something, you can always toggle noclip in the console or map dl_hideout to refresh your position
Superior Duration increases the duration of the barrier gained from Reactive Barrier, but not the barriers received from Spirit Shielding & Weapon Shielding. Because of this inconsistency, I assume it is a bug