Hidden blocker, cant launch

[Ringkeeper]

HI,

i have a problem with one of my rockets i put together.

The rocket can't be launched. With full throttle the rocket just stays where it is on the launch pad. Even after staging till last stage the landing can just hangs in the air . It can't be moved anywhere.

Before i put the red tank under the can there was one of the "new" ones. With that the rocket launched but bended at the connection between can/rcs-tank and was not controllable.

Link to pictures:

https://imgur.com/a/yzmSX#0

Craft file, Mechjeb+KAS used:

http://www.ringkeeper.de/test.craft

Someone an idea why this happens?

Thanks.

[Epthelyn]

The Mk1 Lander Can does that sometimes. I had the same thing happen several times over the course of a couple of days and then avoided using it for a while. However, recent launches with it have gone without a hitch.

I have no idea why it happens, but I'm pretty sure that's the cause; in one case the only part left was the floating pod.

Edited July 1, 2014 by Epthelyn

[Claw]

I have never seen this before. And I don't recall it being posted on here either. I see you have some mod parts. Can you get it to also do this with stock (just removing any mod parts)?

I could imagine that KAS might be doing something also. You might want to check the KAS threads.

[Epthelyn]

I have never seen this before. And I don't recall it being posted on here either.

It was, nobody replied

With that in mind I found my thread and took the imgur album from it, shown below.

Stock aside from Engineer:

Javascript is disabled. View full album

[LethalDose]

well, I think the KER part is the common issue in both of those. Have you tried removing the KER part and seeing if the bug persists?

I haven't seen this bug either, and don't use KAS or KER, for whatever that's worth.

[Tortoise]

I have KER and have never had a problem like that.

Is it possible that when you're in the VAB, it actually isn't attached to the rocket? Is it sort of transparent-ish in the VAB where you can't see it as good as your normal rocket?

[Claw]

It was, nobody replied

Sorry we missed it.

For your, it looks like there is a claw on top. If that's the case, there has definitely been some wierdness with that thing. Sometimes it just sticks inplace while everything else rips off around it.

Was this craft consistently broken like this? If you removed KER would it still do it? If so, then I would love to get my hands on it because it might provide some clues to the claw mystery.

[Ringkeeper]

Sorry we missed it.

For your, it looks like there is a claw on top. If that's the case, there has definitely been some wierdness with that thing. Sometimes it just sticks inplace while everything else rips off around it.

Was this craft consistently broken like this? If you removed KER would it still do it? If so, then I would love to get my hands on it because it might provide some clues to the claw mystery.

Yeah, seems the CLAW causes the problem. On my craft there was a claw before i went back to VAB, removed it and tried again (where the pictures are from).

After game exit and restart the rocket flys normal. Seems claw and can dont like each other much^^

*EDIT* Happens now also to ships without a clamp. They just stop responding and if in space the start accelerating like crazy....

Edited July 2, 2014 by Ringkeeper

[Claw]

*EDIT* Happens now also to ships without a clamp. They just stop responding and if in space the start accelerating like crazy....

Be careful about running into the problem. Once you have the problem, you need to exit and restart KSP. Otherwise each craft you switch to will start acting strange, racing off or just exploding.