In 0.6.5 I could launch my BFR with ship without detaching, but now it breaks in the interstage that connects the rocket with the ship.
I don't know if I'm doing something wrong or if this is a bug, I've tried changing colissions between parts and stability, but I can't make this stay conected. That makes it difficult to control the crane, because I have to change control between vessels after breaking and sometimes the crane stop working.
@pedro16797 well, it's been a long 3 hours but now I'm hitting my head hard with the table.
All custom locations I was using were too close to the land, they seem deep but they weren't. At spawn the craft tempted to appear at (aprox) 1m altitude, but the ship was inside the land, so it raised a bit and then splashed down at about 10m/s, hitting the ground and breaking at the interstage.
That's coherent with the "breaking when spawning in launchpad/runway". So I tried to go deeper to pick another spawn (it took me about 1 hour because I don't understand the relation between direction of spawn at saved location and hangar direction) and now it floats without breaking at the interstage.
To sum up: I'm so sorry for making you spend your time, you can delete the bug.