If the only issue is that the parts aren't sticking, this is very common when you change software programs. Each program tends to do slightly different things on the first layer, so if you had previously calibrated your printer to work perfectly with software program A, and then you switch to program B, it's likely that you will need to make some adjustments before things stick perfectly. Thankfully, it's really easy to do in the software (you don't even have to make hardware adjustments!)
This explains the options pretty well:
https://www.simplify3d.com/support/prin ... to-the-bed