Shimitty

Touhou is my favorite anime!

So more testing and I was able to replicate it without Karbonite or K+ installed. If you have a ship in orbit around Kerbin and a ship around Mun, and you take a warp ship and warp to the Mun's SOI, your velocity goes down to zero. And then it keeps going down to zero every time you throttle up the warp drive. Nothing happens if you just jump around SOI's in a system with no other ships.

I regret to say I found it again. After more experimenting I think I found a correlation. If you activate a drive when there is another ship in orbit that has Karbonite parts (but not k+ parts) your ship's velocity goes to zero. This causes extreme lag and sometimes crashes the game. Will further testing, I found that the warp drive would repeat the behavior even if the ship with Karbonite parts was de-orbited. Resetting the game seemed to be the only thing that fixed it. I'll follow this up with more testing later.

So I did a clean install and added karbonite and K+ and was unable to replicate the bug. Will continue to experiment, but I'm thinking that maybe there were files left from the first few versions of the mod still in the gamedata folder.

Astronomer's visual pack: Edge of Oblivion Fine Print Hot Rockets Karbonite Karbonite Plus Texture Replacer Atmospheric Trojectories Warp Drive Mod (obviously)

I do not have mechjeb installed. With further testing I found that a ship with no karbonite or K+ parts some will have a velocity of 0 when changing sois. I'll do some more testing when I get home and see if it generated any crash logs.

At least from my testing, It looks like this mod is incompatible with K+. The velocity goes to 0 and the game hangs then crashes when a ship with K+ parts leaves/enters a new soi.