Cannot access calendars in Android 12

[NTICompass]

My Zenfone 8 is running Android 12 (UL-I006D-ASUS-31.1010.0410.43-1.1.25-2202-user.zip). Using ASUS Launcher, I can add a widget - like Chronus.
That widget cannot access my calendar, it just says there aren't any.
I also installed Niagara Launcher and it also says "no calendars
found."
Why can't I access calendars?
My phone is rooted, but it's unlikely that's the issue.

[Oscaroo]

I have the Microsoft launcher and have google calendar widget on it okay.

[NTICompass · Accepted solution]

This was a weird issue. Last night, it wasn't working. But, it's working now... I think I just had to let it finish syncing and then it magically worked.