Our default is to have the marquee tool set to mult-story selection. This problem was not a GS problem, this was my error. Please let me know if you need a secure link to upload the file also. I'm wondering if you are willing to share with us the project in PLA format? It's definitely worth taking a closer look. This is something that we have never seen before. We were and still are doing intensive tests with the new macOS. Thank you very much for your report and I am very sorry about the issue! Yet they only want to support AC for 2 versions back, not acceptable from perspective. This was very disappointing and tells me GS has done a terrible job preparing AC24 for Big Sur, if they have at all.īig Sur has been in developer hands for months, there is no excuse for this bad of an implementation from GS. Im not talking about speciality library parts. I was astonished upon launching the project on the iMac running Big Sur, how much of the model was missing. I decided to open a current AC24 project on that same machine, a project that works fine on a machine running Catalina.

I have noticed it seems to be 'snappier' at everything from accessing my network to loading web pages.

To add insult to injury, I have a 'non critical' iMac that I installed Big Sur on.

Mac os big sur archicad