Top layer line openings

Hi all,

New to this forum so thanks for reading. I have scanned a taxidermy eagle with a creality scanner and have processed the image and cut the scan up so I can print it. The issue I am having is the top layer lines are not touching each other through parts of the slice (I am using Bambu Studio as I have a Bambu x1 Carbon). I have processed the scan in Mesh Mixer but just don’t know how to fix this issue as the terminology is probably an issue as I don’t know what to search for to fix this. Attached is an example. Any help would be so appreciated. Jason