Encountered bug in the VAB

[Aquaticfantastic]

So I've got this pretty annoying issue when trying to launch craft from the VAB where I open the pause menu to launch the craft (after loading it from subassemblies) the cursor highlights the parts section while the pause menu is open, this then means that I cannot get out of the pause menu. The only way out from that point is to close the whole game down and reload the save to try again, eventually it works normally but it usually takes 3-4 tries of reloading the save and trying to launch.

I'm on PS4- career mode, approximately year 10 

The subassembly I am loading is a complete rover that has been built in the SAB, I'm trying to load it on the launch pad and drive it to a base pod on the runway to test being able to load/unload the rover.

I'll get a screenshot/ video once I'm home from work but hopefully somebody has encountered this and can provide some advice. If not hopefully the DEV team will see this.