"Synchronization with project failed" since Nextcloud Files app 3.18.0

I'm experiencing a synchronization issue since updating my Nextcloud Files app from version 3.17.1 to version 3.18.0 (18th November 2021).

Android version: 10 (July patch level)

Device: Motorola one action

System language: German

App version: 0.1.14

App source: F-Droid

Steps to reproduce:

  1. Install Nextcloud Files app version 3.17.1 and Moneybuster app version 0.1.14
  2. Setup Moneybuster to use the Nextcloud Files app account information. The projects (in my case only one) are discovered correctly and I can work just normal.
  3. Update the Nextcloud Files app to version 3.18.0 (18th November 2021).
  4. When you open Moneybuster now and the sync starts, you see the error message from the following screenshot: Screenshot_20211108-202134