Maybe I did not mess it up then. I would agree that the warnings I saw were all non-critical, and it did complete. I am using MATE 17.04 64 bit., gtk 3.22 and is about exactly as Henk explains above. I can also confirm that changing the theme makes no difference for me, and I believe now that the patch is not effective either. I was using 16.10 prior to the upgrade and all worked fine.
Maybe I did not mess it up then. I would agree that the warnings I saw were all non-critical, and it did complete. I am using MATE 17.04 64 bit., gtk 3.22 and is about exactly as Henk explains above. I can also confirm that changing the theme makes no difference for me, and I believe now that the patch is not effective either. I was using 16.10 prior to the upgrade and all worked fine.