My best guess as to why this happens is that there's some sort of race-condition on the event registration - or maybe the scale-factor just changes enough such that the media query-state changes, while it is still within the specified bounds?

Idk, anyhow, I would rather just remove the assertion altogether

Should I remove it then? If so, then I can also remove the event parameter completely, as it won't be used anymore inside that function. What do you think?

Yeah, go ahead and remove the assert and the parameter.

Done! ✅

I haven't finally removed the event: MediaQueryListEvent parameter, I've just marked it as _unused. It cannot be removed because the listener at the MediaQueryListHandle needs it to be used by other parts of the code, like the canvas to check if the browser is on dark mode or not

That's fine, thanks!

Great, thanks! How often do you release? I'd love to have it as a 0.27.x hotfix, if possible 🙏 Or should I open another PR cherry-picking the fix to the 0.27.x branch?

See #2600 - I'd guess that 0.28 will land some time before February.