[[1.9.1+] OPT Legacy 3.1.2 | Reconfig 3.4 [Apr 20, 2021]]

Hi, does anyone knows how to fix the "Ground Contact Error" for some of the OPT parts?

I tried using the OPT Humpback cargo ramp and it always caused the craft to spawn 1 km above the runway. Thanks!

[[1.3.0] OPT Space Plane v2.0.1 - updated 29/07/2017]

1 minute ago, stali79 said:

Are you using the latest version of RPM? And some cockpits don't have buttons etc.

Yes I'm using the latest version of RPM, and OPT-K and J cockpit don't have cockpit buttons as I played before in ksp 1.2.2.

[[1.3.0] OPT Space Plane v2.0.1 - updated 29/07/2017]

Hi everyone, I've recently updated ksp to 1.3, and I've got some issues with OPT parts. When I turn to IVA view, no matter what cockpit type it is, most of the buttons were missing, only the main display was left. Is there anyone who's experiencing this problem? Thanks. 

[[0.25]KSP Interstellar (Magnetic Nozzles, ISRU Revamp) Version 0.13]

I can't find the exotic power in the parts but i saw another people has it. Did anyone know what's the problem? Thanks!