If it helps, I've had a look through the log myself and found the following errors:
WARNING: extension missing proc glGetnTexImage. This is a problem with your video driver.
WARNING: extension missing proc glGetnUniformdv. This is a problem with your video driver.
WARNING: extension missing proc glGetnMapdv. This is a problem with your video driver.
WARNING: extension missing proc glGetnMapfv. This is a problem with your video driver.
WARNING: extension missing proc glGetnMapiv. This is a problem with your video driver.
WARNING: extension missing proc glGetnPixelMapfv. This is a problem with your video driver.
WARNING: extension missing proc glGetnPixelMapuiv. This is a problem with your video driver.
WARNING: extension missing proc glGetnPixelMapusv. This is a problem with your video driver.
WARNING: extension missing proc glGetnPolygonStipple. This is a problem with your video driver.
WARNING: extension missing proc glGetnColorTable. This is a problem with your video driver.
WARNING: extension missing proc glGetnConvolutionFilter. This is a problem with your video driver.
WARNING: extension missing proc glGetnSeparableFilter. This is a problem with your video driver.
WARNING: extension missing proc glGetnHistogram. This is a problem with your video driver.
WARNING: extension missing proc glGetnMinmax. This is a problem with your video driver.
-- These also appear when I'm flying the 172 and it works as expected - so I'm guessing that they're not important?
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at KCEA and KIAB!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at WSAC and WSSS!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at RJCJ and RJCC!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at RJDU and RJFU!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at RJDU and RJFU!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at WIPT and WIEE!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at VEVZ and VOVZ!
0:00:49.022 W/ATC: Found overlapping airports with overlapping controller freqs at KNSE and KNDZ!
0:00:49.022 W/ATC: Rewrote KAHN atc_ControllerRole_Del's freq: 133950 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote KCEA atc_ControllerRole_Twr's freq: 127250 to 118025 for being in conflict!
0:00:49.022 W/ATC: Rewrote WSAC atc_ControllerRole_Twr's freq: 118250 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote RJCJ atc_ControllerRole_Del's freq: 121900 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote RJDU atc_ControllerRole_Gnd's freq: 121600 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote RJDU atc_ControllerRole_Twr's freq: 122700 to 118025 for being in conflict!
0:00:49.022 W/ATC: Rewrote RJDU atc_ControllerRole_Twr's freq: 126200 to 118050 for being in conflict!
0:00:49.022 W/ATC: Rewrote RJDU atc_ControllerRole_Twr's freq: 118500 to 118075 for being in conflict!
0:00:49.022 W/ATC: Rewrote WIPT atc_ControllerRole_Twr's freq: 118300 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote VEVZ atc_ControllerRole_Twr's freq: 119700 to 118000 for being in conflict!
0:00:49.022 W/ATC: Rewrote KNSE atc_ControllerRole_Twr's freq: 121400 to 118000 for being in conflict!
-- Again, doesn't appear relevant
2020-11-01 23:41:32 TBM900[helpers.c:1123]: Cannot open directory C:\Program Files (x86)\Steam\steamapps\common\X-Plane 11\\Output\TBM900\state: The system cannot find the path specified.
-- Was surprised to see "\\" in the path - relevant?
2020-11-01 23:41:33 TBM900[shader.c:429]: Cannot load shader C:\Program Files (x86)\Steam\steamapps\common\X-Plane 11\\Aircraft\X-Aviation\TBM-900\plugins\systems\data\librain\droplets.comp.glsl430: compile error: ERROR: 1:78: 'location qualifer' : the "location" qualifier cannot be used when a "binding" qualifier is also provided. Use "offset" instead
2020-11-01 23:41:33 TBM900[shader.c:151]: Error loading shader C:\Program Files (x86)\Steam\steamapps\common\X-Plane 11\\Aircraft\X-Aviation\TBM-900\plugins\systems\data\librain\droplets.comp.spv: SPIR-V shaders not supported and no fallback shader found.
-- Both well above my pay grade. Files are present at those locations though.
2020-11-01 23:41:33 TBM900[xplane.c:1543]: Systems plugin is disabling
-- Is this the key to the issue? Disabling because of the above 2 errors?
0:01:01.200 I/DSF: Warning for missing scenery file: -41+171
-- Irrelivant?
Hope this helps,
Cheers,
Colin