I get the following error message when trying to display a vendor invoice: "You cannot edit the following fields due to restrict mode being activated on the journal: debit, credit, account_id, partner_id."

This only happens for vendor invoices that are posted to an asset account. Cost invoices still display normally.

When I post a NEW vendor invoice on an asset account, it shows the exact same error. Strange thing is that it dóes post and it dóes create the fixed asset. It dóes show up in the overview of vendor invoices, but when I try to display, I get that error again.

Version: Odoo 13 CE

Core modules in finance: om_account_accountant and om_account_asset from OdooMates 

Customizations: None

Already tried:

- "superuser" mode, but that did not make a difference.

- using the exact same vendor for cost invoice and asset invoice. Cost is OK, asset gives the error

Error since: This used to work fine. It seems to be caused either by the update of the modules of Odoo mates (which I indeed installed) or by updates in the general software of Odoo CE (I tend to update every two months).

Anyone have any idea's?