The Node 202 riser card does not support PCIe 4.0 and as it looks now, we do not have any plans of making a revised cable either. The Ridge riser card is not compatible with Node 202 either.
__________________________________________________________________________
However, some motherboards do let you manually set the PCIe 4.0 slot back to PCIe 3.0, but that is entirely dependent on the motherboard. If your board has this option, it should hopefully correct the compatibility issues you're experiencing with no measurable effect on the performance of any graphics card currently available.