If I, after setting up everything the way I like it, change the calendars to display events from, it seems like the lockscreen overview is being reverted to the default layout and nothing I do can change that. The only way to be able to make changes to the layout again is by uninstalling & reinstalling.
I'm not able to reproduce this bug. Did you try pressing the refresh icon?
Is it a one-time thing or do have to reinstall every time you have to make a change?
Do the changes see after a restart?
If I, after setting up everything the way I like it, change the calendars to display events from, it seems like the lockscreen overview is being reverted to the default layout and nothing I do can change that. The only way to be able to make changes to the layout again is by uninstalling & reinstalling.