Hi,
There hasn't been a BotReSpawn update for a while so nothing's changed here.
When did the issue begin? If it's some time after wipe then you're looking for a change in your set up.
Think back over what changes were made recently - plugin additions, plugin updates, that kind of thing.
Some main troubleshooting approaches I'd take are
1: Strip completely naked and redeem one of the kits in question, to be 100% sure it's being given out as you expect.
2: Disable belt wipe for the npcs with that kit and kill the npc to confirm whether or not it has the weapon in its inventory.
3: I think all weapons should work but if it's some new or unusual weapon, change the kit to have a known quantity like an AK or LR.
4: Unload all plugins then load Kits, then load BotReSpawn.
Each of those will confirm something useful.