I printed Planetary Gears and the top looks great but the bottom doesn't

I am printing on a TronXY X3 (Prusa i3 metal frame clone) using eSun PLA+ and sliced using Cura 2.5. I print on glass and do manual leveling (sheet of paper to set gap).

What could be causing this?

It almost looks like a raft; but, I selected to print with a Brim not a Raft.

I have seen this on some other prints so I suspect it is a slicer setting. Note: Bed adhesion seemed great. First adhered well and part popped off with very little effort.

I printed Planetary Gears and the top looks great but the bottom doesn't

I am printing on a TronXY X3 (Prusa i3 metal frame clone) using eSun PLA+ and sliced using Cura 2.4. I print on glass and do manual leveling (sheet of paper to set gap).

What could be causing this?

It almost looks like a raft; but, I selected to print with a Brim not a Raft.

I have seen this on some other prints so I suspect it is a slicer setting. Note: Bed adhesion seemed great. First adhered well and part popped off with very little effort.