Changes in desktop don't sync to Android

[Elaborendum]

I've been using the radicale plugin with Thunderbird to sync with the android app, but only recently I've realized that basically none fo the changes are reflected on mobile. I've tried copying, changing details, creating a new event, etc. I've tried both with the stock apps and third party apps, none show anything. I removed the authentication from the radicale server too.

Only erasing an event created on mobile is reflected.

Same with tasks, no idea with contacts.

[UttermostUsername]

I have experienced a similar bug. Edits to entries on either desktop (thunderbird+radicale) or phone (multiple different clients) don't sync to the other. When a calendar item or task is created it is synced properly but any edits to already created items aren't synced.