Tested it again. Happens on water. I discovered it while building flooded terrain on Gleba and I didn't consider that this makes a difference.

Ctrl+X then Ctrl+Z the ghost of this blueprint makes some mines disappear. Not to mention that if I build mines close enough the sometimes appear green as if I can build them but cant be built.

0eNqdmttq40oQRf9Fz4ro+8W/MoSDcyKCIJGD7QxnGPzvpxVPrA4jV+2upxCIFrW71V0rZf/unl4/xvfjNJ+73e/uNO ...

I didn't have enough in logistic network and I misinterpreted the "not enough to fill rocket" message.
Thx

How can I insert Blue Circuits into rocket silo? No matter how many I request on the platform it says its not enough to fill one rocket. It works for other items I tried so its a problem with circuits only or at least not with all items as I didn't try everything.

The ramps concrete base look like they are placed at an ~10 degree angle it looks really weird.

Could you post your save so we can see what exactly happens?