Lockwise does not sync after the first time

[peterjoel]

I found this issue logged over a year ago:

No syncing

Lockbox is not syncing my passwords. To get them synced, I need to fully disconnect from Lockbox and reconnect again.

I see something similar. When I first installed Lockwise on my phone, it synchronised with Firefox. However, any new passwords that I enter in Firefox are not synchronised on my device. Logging out and in again does not help.