I don't know of any changes, but a common issue with the connection between QB and Lacerte is that one of the programs is set to run as Administrator while the other is not. They should both be running as the same level, otherwise they are not able to talk to each other. You can check this by right-clicking on the shortcut for either program and choosing properties, then go to the compatibility tab. Nothing should be checked on that tab, but if you really need to run one of them as Admin, you should run both as Admin for the invoice feature to work.