Inboxes is not showing all email accounts

I have a Pro License but have recently found that of my 5 email accounts, the main default one is not now appearing as combined mail with the others when you click on “Inboxes” I have added it to Favourite etc and it shows in the list but not as part of the overall single list which is the main purpose I use and enjoy emclient.

Inboxes does list all the other four email accounts in a combined manner, and is frustrating that I now need to check more than one account to be sure I am seeing all mail.

I am using version 9.2.2157 (5b49542).

I fear that if I export everything and reload the program I might just cause other issues and also have difficulty resetting my license.

Hoping someone can help as this program has worked well for many years.