I don't know how long do users have to justify that GSX is an issue with Shutters on touch down. Following the most recent update, issues have arisen that appear to be directly related to GSX. After reviewing the update patterns of other major components within the simulator environment, it is evident that GSX is the most frequently updated and likely the source of the problem.
Reasoning:
MSFS 2020 Update Cadence:
Microsoft Flight Simulator 2020 receives official updates approximately once per month, including Nav Data and core sim enhancements. This makes it a relatively stable baseline environment.
Third-Party Aircraft Updates:
Most third-party aircraft developers release updates on average every 1–2 months. These updates are generally well-documented and timed around sim updates or major feature rollouts.
GSX Update Frequency:
GSX, in contrast, pushes updates at a much higher frequency—anywhere from 3 to 5 times per month.. it also increases the risk of issues; example conflicting the shutters on touchdown.
Conclusion:
Given the recent instability and behavior issues observed since the last GSX latest update, and the relatively unchanged state of the simulator and aircraft add-ons, GSX is the most probable cause. rollback of GSX update to 3.5.6 should be considered to confirm to resolve Issue.