Would you agree this is an infill issue? Pic included

[fred_dot_u]

The inconsistency would mean the moisture idea isn't valid. It's really difficult to tell from the photo and the limitations of the information available.

[TTVert]

What other info can I provide you that may be helpful? Sorry about that pic I tried to grab it before the extruder was out of the way. Good point in the moisture not being the issue did to the inconsistent nature of the issue. I'm fairly certain it's the 20% infill but I don't really recall this issue before with larger flat surface.

Dave