The following doesn't happen with your older FA-18 Super Hornet mod, where the Weapon Officer doesn't seem to have a "mouse cursor" (like the pilot does).

Instead, when entering the plane, this error is displayed and the framerate drops to single digits:
"
_btnSel = (_screenPos distance js_jc_fa18_cockpit_cursorPos)
Error Type Number,Not a Number, expected Number
_array = _x;
Error Undefined variable in expression: _x
File js_jc_fa18_aftcockpit\functions\drawHandler.sqf
[js_jc_fa18_aftcockpit\functions\drawHandler]..., line 18
"

Please see the attached video:
https://youtu.be/Opy_Nx_ITMM

Thank you very much!

PS: I can also provide the RPT if needed.