Anyone else having weird issues like this?

I haven't seen ayone report this yet. This plugin doesn't actually replace any behavior related to processing transactions, so I suspect another plugin is the cause.

I have no other vending machine plugin. After restarting this plugin, we have not seen it happen again.  Will let you know if we see it again.  Thanks for everything you do.

This seem to be the same issue described in this thread.

https://umod.org/community/rust/30614-vending-machines-giving-random-items-such-as-one-metal-frag-one-stone-etc