I'm having very similar problems, which really seem to come from that critical first layer.
In my case, the culprit seems to be the initial pre-extrusion that the Mooz puts out to get material flowing before it begins laying down the Skirt. (I'm using Cura as my slicer.)
I had also put masking tape over the bed, after seeing one of the Mooz unboxing videos - I figured if the 'pro' in the video did it, there must be something to it. Then I thought "Yeah, and he probably increased the heat of the bed to account for the tape", so in the end, took the tape off.
I'm really struggling here - I can print one small piece at a time - but anything more complicated is a blobby mess.
Has anyone found settings that consistently work?
One thing I tried as well was to slow down the initial layer to 15mm/s. So far, that and removing the tape seems to be yielding a good print. Maybe one of those two was the problem?
Should I not be using Cura?