I suspect the problem is related to optics. Unless you have depth of field problem, use larger aperture and don't stop down just to prolong the exposure time. Use neutral density filter if necessary. For closeup I bet you can rearrange the light source and subject orientation if you have to avoid this problem.(posted 8099 days ago)Nightscape has such a large range of light intensity, and it is a very demanding shooting condition for lens, camera and film. So, don't expect lenses that perform great under daylight to do the same during night. I think there are several great lenses for 35mm, but not many for MF, and I don't know how easy to find one in LF. Nightscape photos my friend showed me (in 4x5) were disappointing because of compromised contrast of various causes.
For developer, I recommend Microphen 1+1 or 1+3 at 25C. I even think Microphen was designed for TMX!