I wrote about real world collisions, including that particular library last year (https://alexsci.com/blog/uuid-oops/ https://alexsci.com/blog/uuid-oops/). The

I wrote about real world collisions, including that particular library last year (https://alexsci.com/blog/uuid-oops/ https://alexsci.com/blog/uuid-oops/). There are a bunch of constraints that must be strictly held for UUIDs to be collision resistant, I'd guess there is a problem with your random number generator.