I mounted around 64 unguided rockets on a ship and xml modded them to have burn out times so they arc and fall like an artillery shell. They worked for a long time but one day without editing em, holding down the fire button causes them to rapidly all launch and noclip right through the ship and fall out of the map. I can't get any videos of it happening but I will provide screenshots soon. It appears to come and go now.

Update: 12-5-17, they still don't work and I have a screenshot of the glitch.
https://imgur.com/a/2ipe7