Mark3D

I can't help with your problem sorry i tried but no luck, but I had a thought when sharing file on chief talk for help I would export disconnected plan file it is way smaller

This forum is for chief architect not home designer https://hometalk.chiefarchitect.com/ if you want share your file with home designer version as they are compatible with each other some should be able to guide you with your problems

this was not selected

You should be able to get x14 working as i think its the last version that we get to own, so contact chief and see if they can help you get working again

Version 12 should open in home designer 2021 not that you need it as the fix is not to hard

Video show fix

See if that is heading in the right direction, its working with auto roofs also do your signature I do not know what version you are using i figured it to be version12 Plus i deleted a lot of stuff to get the file small enough i think the terrain was the main file size problem BB Court main file.plan

Can you share your plan

Have a look at this file, it has auto framing but you may need to manually draw batten below and above windows, the panel rebates are done with material regions draw one then multipul copy. Panel wall.plan

Typo I think you are asking if I am a AU user yes my signature shows that also

Try this video the audio is a bit up and down but should help If you still cannot do it send me your plan will have a go

They are a bit complex i have been trying to do video showing it as i spotted as a good topic for au users and getting stressed with it i need to relax and have another go when I am calm.

Hips and ridge capping

You just need to redraw the section line I used for the roof section of the molding polyline to get the 2100 width and adjust its position on the molding polyline. let me know if it's to tricky Bullnose veandah.plan

Try this its a 3d molding line with stacked moldings Bullnose veandah 2100.plan