Strange wavy wobbly gaps between everything in exported UV Maps

[dark_trix]

Hi there, have a question. Been using substance fine the past few weeks. Export PBR metallic roughness (with output for Unreal), and normally get hard straight edges on my maps as I'd expect. However, this wobbly wavy mess came up (it is a building, nothing is curved). I have even turned off infinite diliation, as someone mentioned this might be the issue, but no avail. I use C4D to make my models. 

Any help as to why this is happening would be greatly appreciated!

[GeoffroySC]

Hi,

What padding setting did you set? Those "wobbling gaps" is more than likely to be the padding that is necessary when MIP maps of your textures are done as it avoids artifact from the background, or another island, to be seen. 
Have you tried applying the texture to your model in engine to check for any errors? 

Thank you,

Kind Regards,

Geoffroy