Laminar Research has recently announced the hotfix release of X-Plane 12.3.3. This is mainly a small fix to address an issue when using the newest version of the NVIDIA graphics driver. They also fixed an issue relating to instancing objects using the SDK.
On an article posted on their website, they mention the public release: December 9, 2025 along with the below
NOTAMS
For MacOS users, please update to the latest installer 5.2.1.
This will resolve the error : “(the technical problem was: is a directory)”
Fixes
Graphics
- Fixed an issue when using NVIDIA Graphics Driver version 591.44
SDK
- Fixed an issue when instancing objects using the SDK, this error seems to happen especially when using the Hot Start Challenger 650 (XPD-17441)

