Update
We narrowed down the issue to msfs 2020 airplanes having the windshield glass attached to the external model.
As a result the windshield starts to put cubic reflections of the city and objects below.
I moved the windshield to the interior model in msfs 2020, recompiled it, copied it again to msfs 2024 community folder and all my QA testers stopped experiencing this issue.
I will be pushing this as an update to msfs 2020 marketplace this week just in case, but it is possible other aircrafts could be experiencing this issue.
Best,
Raul