Please Help! Unreal Landscape fighting against Vehicle Physics

Hi there,
Ive been developing a racing game for many years and always found this issue where the vehicle will randomly flick up at the front at various points around the track.

I tried everything I could think of to resolve this including smoothing the terrain, improving vehicle physics, checking collision volumes on both the landscape and vehicle and went through all the filters at a microscopic level down on the tracks trying to find out what was causing the issue. In the last week, I finally discovered what it was!!

When the vehicle crosses over from one grid square on the landscape to another, it causes the vehicle to skip! (See image for reference)

I have tried to look for answers online and look for videos that might help, but 'Im coming up empty. Please tell me there is an option in Unreal to not detect landscape grids!
(The alternative is to create many invisible meshes that bridge over these gridlines but that is a lot of work as there are multiple maps!)

If anyone can help, I’d be super grateful!

Cheers,
J