Quartus 18.1 and 19.1 unable to program stratix 10 L-tile

I think this is a bug, but I'm not sure where to post bug reports. I have been unable to program my stratix 10 L-tile dev kit (1SG280LU2F50E2VGS3) with either quartus pro 18.1 or 19.1. I can progra...