Ask the Experts / Need help fixing a possible black hole

I actually asked this on reddit already, but I'm asking here to see if anyone can help me.

So, I'm fucking around with some trackitecture, and, suddenly:

This shit happens. So, it looks like my entrance got lowered one unit, but if I try raising it back with MOM, it still doesn't function properly, and I can't even remove it. So, is it a black hole, and can someone fix it for me?

I'll PM you the save file (don't want people seeing my unfinished work )

thanks

Go in to 8cars 1.32, MoM, and remove "null objects".  Then, delete the trackitecture, try putting the entrance back with MoM, and re-do the invisibility hack.  Finally, replace the trackitecture, but be careful and isolate the height and not modify anything other than the track you want to change height.

Must have missed this topic. If you still have this problem I could take a look at it. No guarantee I can fix it though.

Go in to 8cars 1.32, MoM, and remove "null objects".  Then, delete the trackitecture, try putting the entrance back with MoM, and re-do the invisibility hack.  Finally, replace the trackitecture, but be careful and isolate the height and not modify anything other than the track you want to change height.

Thanks man, will try it out. 

EDIT: Still no luck. I deleted "null" objects, and put the entrance back after removing the trackitecture, but the entrance still doesn't work, and if I try to remove it normally, the game error traps on me.