Grass Floating in Sky

Hello all. I recently started a project with Open world tree spawner and the grass sytem. I followed the step by step guide online and in the end I had my ground has blank strips after painting because the grass is floating in patched up in the air above the strips. I think it might be the topology tool? I used it once before hand and there were only a few strips. I clicked the topology tool again to see what it would do to the grass and the patches and sky grass got worse. Not getting worse with any more attempts but the first time it did.

Any ideas on how to solve it?

If anyone else has this problem. I just deleted the terrain and did it again. Worked perfectly.