This is similar to Missing company code field in Twinfield GeneralLedgerAccountMappings table.
For Invantive it is not possible to analyze the working due to lacking documentation and no access to a test environment which displays the behaviour (Twinfield offers no access to partners to the Hierarchy setup).
In case any user has a (test) environment that displays the problem and for which credentials (user name, password, environment code) can be provided we will be happy to look into it.