On opening a project in PowerConnect, you get the error:

Problem in TMaterial.ReadFromXMLDoc.

The requested value BS_5950 is not found

[NL]: De aangevraagde waarde BS_5950 is niet gevonden.

Cause

The project you’re trying to open was made in version 2018 (or newer), while you try to open it in 2017 (or older). BS 5950 is a British standard implemented in 2018. Older versions of Diamonds don’t recognize it resulting in the error.

Click the error away and continue your calculations.