try to replicate it by connecting jetways (TAB+S) OR CTRL+J before starting gsx boarding
As I've said in my previous post, the problem is fixed with the current Live Update. Of course, I tried like you described, and it doesn't crash now.
However, it's best if you don't use the TAB-S SODE menu to operate SODE jetways when you have GSX. This for the following reasons:
1) Using the GSX menu will result in GSX sending the airplane door data to SODE. Instead, if you start from TAB-S, SODE will have to use its own internal database of airplane configurations. So, you might have to wonder why, even if you configured the airplane in GSX correctly, why you don't see any changes, in case that airplane wasn't also present in the SODE database.
2) Right now, with the current SODE version, there's no way to know for GSX is you already docked/undocked the jetway with TAB-S, resulting in a loss of synchronization between the two. We already discussed with SODE author to add this feature, so this will not be a problem in the future, but right now, it's best not to use TAB-S
3) GSX-created jetways will ONLY work from the GSX menu. SODE jetways in other developers sceneries can work in BOTH ways so, if you have GSX, it's just easier to get accustomed to always use the GSX menu, which is valid for both types of jetway. In fact, the GSX "Operates jetways" also supports CTRL+J jetways so, it's always valid for all kind of jetways.