NimbusSans-Bold http://git.ghostscript.com/?p=urw-core35-fonts.git;a=blob;f=NimbusSans-Bold.afm;h=289ad74271eb19275b4921523e7b8dfcda62ec55;hb=79bcdfb34fbce12b592cce389fa7a19da6b5b018 has FullName Nimbus Sans Bold FamilyName NimbusSans . Full name contains space, but family name does not contain space. NimbusSans-BoldOblique http://git.ghostscript.com/?p=urw-core35-fonts.git;a=blob;f=NimbusSans-BoldOblique.afm;h=6b0eb628cee445c5acc3da5629890ed30e95460b;hb=79bcdfb34fbce12b592cce389fa7a19da6b5b018 has FontName NimbusSans-BoldOblique FullName Nimbus Sans Bold Italic FamilyName NimbusSans . Font name has `Oblique` but full name has `Italic`. Family name does not contain space. NimbusSans-Oblique http://git.ghostscript.com/?p=urw-core35-fonts.git;a=blob;f=NimbusSans-Oblique.afm;h=67fc43a3d31c552f63b298f3e03210a068aedc91;hb=79bcdfb34fbce12b592cce389fa7a19da6b5b018 has FontName NimbusSans-Oblique FullName Nimbus Sans Italic FamilyName NimbusSans . Font name has `Oblique` but full name has `Italic`. Family name does not contain space.
Reporting to URW - relavent technical note from adobe: https://partners.adobe.com/public/developer/en/font/5088.FontNames.pdf
URW has reported a fix will be available by the end of the month.
In the latest drop from URW++: The missing space in the NimbusSans-Bold /FamilyName value has been corrected. NimbusSans-BoldOblique still has: /FullName (Nimbus Sans Bold Italic) and NimbusSans-Oblique still has: /FullName (Nimbus Sans Italic)
From URW: I have attached a zip file with corrections for name entries. It includes TTF,OTF,T1 and AFM. I have also the name entries consistently to Italic (instead of Oblique). I have included P052 Bold Italic too, since this font had a wrong Weight entry. The zip (URW_core_Update_2017_07_20.zip) is in my home directory on casper.
Fixed in: http://git.ghostscript.com/?p=urw-core35-fonts.git;a=commitdiff;h=1f28a6fcd