Security filter does not filter second table data

[Michel_van_Ruij]

IN([Company], SELECT(company[company], [name] = USEREMAIL()))

This fomula is in the security filter for a data table with company as a column, it works fine and does filter correct on Primary view and also for Form view for this table.

This app has a second data table with company as a column and also this formula in the security filter for this table.
This filter works fine for the Primary view but not for the Form view of this table.

I don’t understand why the second table is not filtered for the data in the Form view.
Should a security filter not filter data of the table and have affect on all views for that table ?