I see you've both commented here and on GitHub, so I'll make my last comment here and then we can address the specifics on your ticket (I didn't realize I refer

I see you've both commented here and on GitHub, so I'll make my last comment here and then we can address the specifics on your ticket (I didn't realize I referred you to your own GitHub issue). As I mentioned, there is a pull request already created for this issue; our head of engineering/founder says its being held up by a lack of tests before merging. This problem isn't a slider issue, but a race condition in our session state manager. Regardless, one month is a pretty trivial amount of time as far as open-source projects go, as well as in the history of Streamlit (project became public Oct 2019). Like all projects, we try and address things in the order of severity, and as far as this issue goes, it's a pretty isolated one, not an indication that the library is unreliable or somehow reflects that our engineers can't design at an early-90s level of engineering.