This may help you, if you know how to use ADE - (
D/L LINK).
If your problem is similar to the one I had with minor bouncing, then the Draw Flags for the taxi paths need to be reset, this is a known issue with Prepar3d v2.5. (
SEE HERE)
Do you have Airport Design Editor (ADE) installed?
If so, navigate to your \fsdreamteam\KLAS\scenery folder and open up the AP_KLAS.BGL file.
Then select Taxi Links from the Lists menu, and left click on Reset Draw Flags.
Go to the File menu, select Compile and copy the newly saved file back to the \fsdreamteam\KLAS\scenery folder.
Rename the original AP_KLAS.BGL to AP_KLAS.OFF
This will only help if your problem is actually caused by this in the first place.
Toby