Menstrual cup less effective over time?

[FuckingHateRats]

I bought a cup about 2yrs ago, and have never looked back.

I have noticed that I've had a couple of leaking issues in the last few periods that I haven't had before - has anyone noticed them becoming less effective/more ill-fitting over time?

I’ve had mine for about 10 years and haven’t noticed any changes. I have got too used to it holding a lot which has lead to me accidentally letting it overflow a few times over the years though!

Also 10+ years and no issues.