WordPress Membership Plugin
In our case manual payments are showing up in the Transactions Table on the Dashboard but are not registering in the the swpm_payments_tbl and so the Export of Payments does not have these entries. so, we used to have the problem mentioned by David, but now it is the opposite problem
Payment details are showing up in _postmeta table but there is no _db_row_id in the table.
Thank you in advance for your support.