Mike,
I may be wrong but from earlier postings using Chinese lasers and associated software if artwork was created in Corel and exported as DXF fills are lost.
There is some settings in the software that sends file to laser that fills need to be properly set.
Someone with more knowledge can expand on this.
Trotec Speedy 300 - 60w, with Quatro CSA-626 fume extraction
Xenetech 1625 x2,
New Hermes TX pantograph, CG4 cutter grinder
Brady Globalmark2 label printer,
Assortment of custom tooling , shears & punches, heat bender.
Software: Xenetech XOT, Corel X3, Bartender label software