"Failed to connect to the server" after changing project color from Tasks.org on Radicale

[ignaspsk]

Describe the bug
After setting up Planify with fresh Radicale CalDAV server and creating multiple projects, changing the colors of projects on the server from an android app Tasks.org causes Planify to report error "Failed to connect to the server" upon first sync after changes from server (see screenshot).

To Reproduce
Steps to reproduce the behavior:

1. Add fresh Radicale CalDAV server in Planify
2. Create a few projects (I created 9) and tasks
3. Connect to the same CalDAV server from android app Tasks.org
4. Change projects colors (I also changed the icons, but this is probably irrelevant)
5. Initialize syncing in Planify, then find error "Failed to connect to the server"

Expected behavior
Planify syncing changes from server successfully without error.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS or DE: Fedora Workstation & GNOME
• Version: 42

Additional context
To check for errors I ran flatpak run -v io.github.alainm23.planify and found this:

Entity: line 2: parser error : Extra content at the end of the document
prop><status>HTTP/1.1 404 Not Found</status></propstat></response></multistatus>
                                                                               ^

** (io.github.alainm23.planify:2): WARNING **: 18:21:19.369: Core.vala:257: Failed to sync: .

It seems the problem lies within the parser.
Also, deleting CalDAV account from Planify and adding it back doesn't resolve this.

[ignaspsk]

For some reason this error doesn't occur anymore, for me. No idea what fixed it, though. I just used Planify as usual without expecting sync to work at all.