Make ground paths meet suspended paths

In RCT3 on the iPad, after struggling with creating paths over hilly terrain, I decided to put some of the paths in the air. This has worked for me in the past.
But now, I can't get the ground paths to meet up with the aerial paths so that guests can walk on them. Everything I have tried with every ground adjustment tool fails. If they would just give me finer control of the individual ground tile corners I could do it myself! But it seems that "adjust in increments" only adjusts from the tile's current height, meaning adjacent tiles can't even be brought to the same height manually. And the smoothing tool which I usually use to solve path joining simply fails with aerial paths because it only looks at the ground under the aerial path.
In this screen shot, you can see that I have two paths and a drink stand that won't join up. That sucks because an hour ago the left path and the drink stand worked fine!
Best Answer
I have played RCT3 a lot and this bug also exists in the PC Version. To prevent that this happens I always build ways like this: I just started on a smooth ground and build up from there according to this screenshot:
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Images: PrathSnap, Andrew Neel, Andrea Piacquadio, Ryutaro Tsukata