even with the updated version for 1.12.2, NONE of the backpacks will work. i cant place them, or equip them, this only happens on a server. is this intentional? or a bug, because it works perfectly fine on 1.16.4, yet that version only has 1 bag.

1.12.2
backpack 1.0.35
forge 14.23.5.2855

We've just tested it on the server, everything works well. Please check your mods folder.

Could you record video of it or something?

it wont let me send anything past 10MB so this is the best i can do

Could you record video of it or something?

cant drop the bags with Q (drop item button), cant place, or equip, cant even toss the bags away, they just get deleted

Are you sure you installed the mod on the server? O.o

From this video, it seems that you installed the mod only on client.

its in the server's mod folder and client side mod folder
it works perfectly fine when its on a single player world but on the server it wont work