SEV Resource Management, Possible Bug?

[tmcc]

I have a question on resource management in SEV. The empire screen shows that I have Net 48.6K min, 3.8K farm, 3.6K rad. Despite this I can not build any weapon platforms on one of my planets. The planet in question has a space port and a resupply facility. The start of turn message says the construction queue could not continue due to lack of resources. This is only an issue with the weapon platform as I can build all the facilities I have room for. No space yard on this planet yet so no feedback on ability to build ships. The is only one small WP in cargo, so there is plenty of room.

Also the empire screen shows 50K min, 0 farm, 0 rad in storage with a max storage of 50K each. Why is the unused net listed above not going into storage?

Any hints would be appreciated

TM