macOS Catalina with eGPU - dimension does not meet minimum OpenGL version

I just installed the latest version of Dimension (Adobe Dimension Version 3.4.0, Build 3.4-20200908.r.2791-611127e) on my Mac Mini 2018.

This mac runs Catalina 10.15.7 on an integrated iGPU - Intel 630 1.5G and an external eGPU - AMD Radeon Pro 580. Both features OpenGL 4.1 engine, according to GLView.

However Dimension don't beleive the same, and refuse to launch "Does not meet minimum OpenGL version"

I disabled SideCar as instructed in the forums, no luck.

I see in the logs, just that my AMD eGPU is not detected... copied below.

Any advise?

gbl       Dbg        0ms>Start GPU Sniffer Run
gbl       Dbg        0ms>Build Commit Hash  = 611127eacd250f22943d21b3c2c9dbaa3a0ef9a2
gbl       Dbg        0ms>Build Compile Date = 2020-09-08 13:58:49.667230
gbl       Info       0ms>Tester="AdobeDimension"
gbl       Info       0ms>snifferStart="2020-12-15_12:03:39"
gbl       Info       0ms>AIFCoreInitialized=1
gbl       Info       0ms>AIFOGLInitialized=1
gbl       Info      28ms>OGLContextCreated=1
gbl       Dbg       28ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 74: macNumRenderers=3, aifNumDevices=2
gbl       Dbg       28ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 83: aifDeviceIndex=0, macRendererIndex=0
gbl       Dbg       28ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 85: macDisplayID=b433282, macDisplayMask=4, rendererDisplayMask=ff, intersection=4
gbl       Dbg       35ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 83: aifDeviceIndex=1, macRendererIndex=0
gbl       Dbg       35ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 85: macDisplayID=3f0044, macDisplayMask=100, rendererDisplayMask=ff, intersection=0
gbl       Dbg       35ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 83: aifDeviceIndex=1, macRendererIndex=1
gbl       Dbg       35ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 85: macDisplayID=3f0044, macDisplayMask=100, rendererDisplayMask=3f00, intersection=100
gbl       Dbg       44ms>../components/psgpu/psgpu/gpu/mac/GPUImplMac.cpp: 114: found 2 GPUs
gbl       Info      44ms>NumGLGPUs=2
gbl       Info      44ms>glgpu[0].GLVersion="4.1"
gbl       Info      44ms>glgpu[1].GLVersion="4.1"
gbl       Info      44ms>glgpu[0].GLVendor="Intel Inc."
gbl       Info      44ms>glgpu[1].GLVendor="Intel Inc."
gbl       Info      44ms>glgpu[0].IsIntegratedGLGPU=0
gbl       Info      44ms>glgpu[1].IsIntegratedGLGPU=0
gbl       Info      44ms>glgpu[0].GLMemoryMB=1536
gbl       Info      44ms>glgpu[1].GLMemoryMB=8192
gbl       Info      44ms>glgpu[0].GLName="Intel(R) UHD Graphics 630"
gbl       Info      44ms>glgpu[1].GLName="Intel(R) UHD Graphics 630"
gbl       Info      45ms>glgpu[0].GLVendorID=32902
gbl       Info      45ms>glgpu[1].GLVendorID=4098
gbl       Info      45ms>glgpu[0].GLRectTextureSize=16384
gbl       Info      45ms>glgpu[1].GLRectTextureSize=16384
gbl       Info      45ms>glgpu[0].GLRenderer="Intel(R) UHD Graphics 630"
gbl       Info      45ms>glgpu[1].GLRenderer="Intel(R) UHD Graphics 630"
gbl       Info      45ms>glgpu[0].GLRendererID=16925961
gbl       Info      45ms>glgpu[1].GLRendererID=16915464
gbl       Info      45ms>glgpu[0].HasGLNPOTSupport=1
gbl       Info      45ms>glgpu[1].HasGLNPOTSupport=1
gbl       Info      57ms>glgpu[0].CanCompileProgramGLSL=1
gbl       Info      69ms>glgpu[1].CanCompileProgramGLSL=1
gbl       Info      69ms>glgpu[0].GLFrameBufferOK=1
gbl       Info      69ms>glgpu[1].GLFrameBufferOK=1
gbl       Info      70ms>NumNativeGPUs=0
gbl       Dbg       70ms>../components/psgpu/gpu-sniffer-core/app-specific/felix/FelixTester.cpp: 105: {
                         	"CPUAVX2Capable" : true,
                         	"CPUAVXCapable" : true,
                         	"CPUBrand" : "Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz",
                         	"CPUMhzSpeed" : 3200,
                         	"CPUNumberofLogicalProcessors" : 12,
                         	"CPUNumberofPhysicalProcessors" : 6,
                         	"CPUSSE42Capable" : true,
                         	"TotalRAM" : 17179869184
                         }
gbl       Info      70ms>cpuinfo_json_hex_encoded="7b224350554156583243617061626c65223a747275652c2243505541565843617061626c65223a747275652c224350554272616e64223a22496e74656c28522920436f726528544d292069372d383730304220435055204020332e323047487a222c224350554d687a5370656564223a333230302c224350554e756d6265726f664c6f676963616c50726f636573736f7273223a31322c224350554e756d6265726f66506879736963616c50726f636573736f7273223a362c22435055535345343243617061626c65223a747275652c22546f74616c52414d223a31373137393836393138347d0a"
gbl       Info      70ms>snifferEnd="2020-12-15_12:03:39"