When designing AWS 57 RO window in skylight I have error: Drainage channel gasket cannot be specified for insert units.
Solution: The problem happens when on skylight unit you want to have drainage channel gasket installed. You enable it under Item properties window > Settings > Schuco FW 50[60] **.** > Technical settings > Gasket After checking it on, in normal condition you have glass gasket 224981 (or 224982) with drainage channel to collect condensate from the glass installed on...