I have been having this problem since that change to NXM links, but this fix has not worked for me. I see now that the NMM version is 0.47.3, but setting that value in the workarounds tab isn't helping me either. (I have used 0.47.0, 0.47.1, 0.47.2, 0.47.3) and I continue to get invalid response on all things Nexus.
! woops, missed that last one. Updating now. MO used to warn me when there was a new version. No more?