(1.0.4) Flag glitch at Moho (possibly Vall in 1.0.2)

[Gaarst]

Today I landed on Moho with a Kerbal, first time in 1.0.4, and decided to plant a flag to celebrate this. Everything goes fine until I try to load any type of save (quicksave or persistant), then the flag simply disappears as if taken down or destroyed.

F5-F9-ing while in EVA show that the flag actually sinks about 2m into the ground after each save loading and eventually explodes due to colliding with Moho (guessing).

I did a quick search on the forums and haven't found a recent thread about this problem. If anyone knows one, thank you to redirect me there

I run KSP 1.0.4 with only KER and KAC installed.

If it might be of any consequence, the flag was planted on a >10° slope

And I remember having a similar problem at Vall in 1.0.2. I did my mission there fine and everything, but then, after returning to Kerbin I noticed the flag was missing and assumed I forgot it, and simply HyperEditted another one to Vall. I now think the two might be the same issue.

Does anyone has had the same problem or is it a known glitch ? Any possible explanation or way to fix it would be greatly appreciated.

No screenshots this time, I didn't take any and I'm not going back down there Hopefully, they won't be needed for this issue.