I started using Zbrush yesterday, and so far I’ve enjoyed learning this software.
Today, upon exporting my sculpt as .obj I noticed that it was split into alot of mesh pieces, all named “group”#.
I sense it may have somthing to do with the group-function I used at some part in the sculpt, but I’m not sure how to fix this.
Any ideas? 
I have solved this simply by using FBX instead from the Z-plugin.
but still weird event.
Hello @Danreit
Please post an uncropped screenshot of your mesh showing the entire interface at the time of export with the subtool palette open , and explain exactly how you are exporting your mesh–what buttons you are pressing, what options you are enabling, etc.
Thank you!