The system/profile that is not syncing;

We need to look at the sync logs.

Note: Do the following for each problem system/profile. And label each as to what system/profile.

Type about:sync-log<enter> in the address bar.

Open the last file created and Copy its contents Now Paste it into this forum.

If the file is too large;

Have your web browser go to; https://pastebin.com/

Paste <Control> P the content of the file in the window. Note: On the bottom, fill out the boxes as best you can.

Now press Create A New Paste. The page will reload. Copy the new web address, and post it here.

Hi,

Here is the log: https://pastebin.com/KDj86i8x

Thanks,

Try to disconnect and reconnect to Sync.

You mean sign out and then again sign in to my Firefox? Cause I did many times and it did not work!