Can smoking weed cause a bad odor in the cup?

So here's the thing... I don't smoke it a lot, in fact it was only the second time I tried it but me and a friend were hanging out so I figured why not?... the next day, the cup was fine, but the day after, I took a nap and ended up sleeping longer than I meant to and my cup was in there for about 16 hours instead of the recommended 12. I figured it wouldn't matter much...I took a shower but as soon as I took the cup out I noticed the awful smell. I was surprised the cup could smell that bad, it never did before. It wasn't fishy, it was just... bad.

I tried boiling it for a while but it still smelled so I decided to soak it for a day in a solution of Diva Cup cleaner and water thinking that would help... I had to go to work using pads again... I forgot how absolutely HORRIBLE pads were and how terrible it is to have to feel blood coming out of you while trying to smile and help customers.

When I got home, the sink I had left it in had unfortunately drained slowly and the cup still smelled bad. I tried rubbing alcohol, lemon juice, and apple cider vinegar but nothing was helping... it finally took a combination of just trying these things over and over to get the smell to fade...

now I didn't leave the cup in for that long (Most stories I read that were similar were about cups that were forgotten about or left in for several days, not just a few extra hours) so is it just that I left it in for too long or did maybe smoking weed effect it that much? I mainly ask cause I saw this entry:

http://menstrual-cups.livejournal.com/2496809.html

and was curious... I guess