It might help the developer to hear what information you feel was missing from the documentation/assistance already provided with the aircraft files and in the sim (via the hint images and virtual first officer)? Thanks.
Like you said, a timing issue, those datarefs aren’t created until after the script loads.
https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests
Seems nothing to do with Challenger and everything to do with Resources/default scenery/airport scenery/Dynamic_Vehicles/Master Bank.bank being broken.
You can contact their support and ask if buying the 12 version will let you have access to the 11 version. But let’s be real, the 11 version, like the sim itself, is end-of-life and will never be worked on again.
Maybe we will have to change something, but I have an official LR bug report number for this issue that says “fixed” in Beta 2. So maybe the X-Plane Support person isn’t actually doing any research before pointing the finger back at us. (Wouldn’t be the first time.)
The log either isn’t from one of these attempts or the crash is happening before the CL-650 is even loaded, so I’m not sure what version you’re using.
Since when? Because you installed a beta copy of X-Plane in the last few days, and this version isn’t compatible with the release version of the Challenger.