Dear all,
I have been using SU for a few weeks now with a iMac (2019 - Intel), and updated recently to Sequoia 15.0.1 (I read afterwards I shouldn’t have done this … my bad).
Nevertheless, it seems to work quite well, except that I cannot “install” twilight_OSXx64_V2_Hobby.rbz.
When I do so, the installation seems to work fine, but I cannot see it in the toolbar. When I restart SU24, I have an error message, which indicates that something went wrong during the installation.
I looked into the posts, and the phenomenon looks really similar to the “M1” issue. However, I do not have a “Mx” proc, so I cannot use the “rosetta” trick.
Did anybody here face the same issue, and, ideally, found a solution please? 
Btw, I also have access to SUPro licence, but cannot use it on my iMac due to issue with “colors palette” (see here: Recent macOS updates leading to a crash when using the Colors palette in all versions of SketchUp)
Thank you all!