I’ve had a look online and according to this Reddit post describing the same issue accessing the OculusFunctionLibrary on MacOS - apparently the only way to access the OculusVR plugin’s features is by sideloading Windows on their machine and using that for development. However, you may be able to get around that just by removing any functions or nodes that reference the function library, such as the CheckDevice function or the Set Color Scale Offset node. That should hopefully resolve compiler errors and allow you to access most of the kit’s functionality.
The handgun uses the exact same code as the SMG and assault rifle for pulling back the charging handle/slide, they all use the code that exists in their parent blueprint (BP_gun), the only difference is the handgun has some additional functionality to realign the barrel tilt. Please can you try deleting both the event tick node and parent tick node to see if this section of code in BP_handgun is causing the issue when cocking the slide?
