Z-Glass Issues

Hi, I am new to 3D Printing, I recently purchased the Z-Glass Filament, and I have not had much success with it, the first print was fine, just a simple miniature vase, then I tried something more complex but the print started fine but about 50% through the filament stopped extruding, the print carried on but nothing was coming out. I tried a few different object but the same issue, I have printed the complex object with ABS with no problems, I have checked all the settings in Z Suite, is there something I'm missing, do i need a different hot end??

The new hotend V2 will solve your problem. Old hotend working 50/50%

The new hotend V2 will solve your problem. Old hotend working 50/50%

Thanks for that, Is it difficult to replace? if i put the V2 hotend on can i print with all the filaments as before?

Easy to put on and prints with all filaments.. Two set screws hold it in. (front of block right above it)

This is very easy (in my opinion), they have fully manual "Hotend replacemen" http://support.zortrax.com/hc/en-us/articles/200986731-Hotend-Replacement-

All Z-Filaments work with hotend V2 without any problems.

Thanks a million Guys, great help, More money haha.