Dropbox sync waiting for lock

TrueNAS General
1

Hi Forum,

I’ve various Dropbox cloud sync jobs running:

  1. Backup media files to /backup on dropbox at 18:00
  2. Backup user data1 to /backup_home/user1 on dropbox at 22:00
  3. Backup user data2 to /backup_home/user2 on dropbox at 23:00
  4. Download complete dropbox content (except /backup_home) to folder backup on TrueNAS at 02:00
  5. Download /backup_home to folder backup_home on TrueNAS at 03:00

Tasks 1. and 4. are unencrypted and 2, 3 and 5 are encrypted.

Some days ago, the tasks 2 and 5 stopped working. The jobs start and keep hanging with status messages

Locking remote path ‘/backup_home’ for reading
Locking remote path ‘/backup_home/data1’ for writing

Are there any ideas what do do?

Thank,
Frank