A week ago, I had pretty much no issues sending thousands of Rockets to my Space Platforms but now every once in a while, something causes a standstill where either Rockets won't launch or Platforms won't start move?
Two days ago, 11 of the 12 Silos had a partially filled Rocket with only the 12th Rocket being full ( in the first Screenshot )...
Screenshot
...but neither the full 
or partially filled Rockets would launch despite being requested 
by a Platform with enough Cargospace...
Screenshot
...resulting in no other Platform being served either as every Silo was now occupied - This EXACT scenario happened again today 
Today I was wondering why stuff from Aquilo would no longer arrive just to find that the Platform getting things to and from there was stuck in Orbit for whatever reason?
Screenshot
Yes... The highlighted Cargo 
potentially being the culprit is not entirely fulfilled but nothing is on the way blocking a departure and the contingency plan of a 
120sec Timer to force a departure isn't being honored - Despite being at 100%?