Maybe my problem is related to this thread, maybe I should have opened a new one, but my problem is a disappearing supplier:
Start date set to 01-01-2019:
Purchase invoice dated 27-11-2019 shows like:
Supplier summary looks like:
Then I change the start date 01-12-2019:
Now purchase invoice date 27-11-2019 looks like:
And in the Supplier Summary, this supplier is NOT listed whereas other suppliers are listed with an opening balance (info is blurred):
There are no data between 01-01-2019 and 01-10-2019.
What I can add to this info is that only with this supplier I had to change his name after entering the purchase invoices. Maybe it helps to solve this matter.