I dont know wether this is the correct group, apologies if not. We have a Cadstar V18 CPA and CSA archives, the Schematic import just fine, but the CPA archive complains with an Unknown node ‘TDROPATSTART’ in ‘ROUTE_VERTEX’ using KiCad 6.0.7 on a Mac.
You can not do it in the forum you’ll need to do it over at gitlab, where the source code and development takes place.
In KiCad you can go to Help->About and click on Report Bug, it’ll take you directly to the correct place (you’ll need to open a Gitlab account if you don’t have one and if you want, set the bug report as confidential, this way only the developers can see it and your files)