I first noticed this issue on my phone. On there the loading icon of my web browser is not immediatly visible, and public transport 5g isn't super fast. The result was that I figured this was a bug in the on/of toggle, but on my pc it looks like the issue might be a race condition: both the dropdown selection and the toggle trigger a page load of a lens, but different ones.
I can think of a couple suggestions for expected behaviour
- be just a dropdown that doesn't load anything on it's own
- have a loading icon next to it
- disable the toggle until it's loaded
- turn on the toggle trough javascript immediatly
- have a "no lens" option instead of a toggle