Hey Don,
there is an option “rapid-auto-off” that should be automatically enabled with tool=laser and disabled with tool=“router”. This option makes that on rapid moves (G0 commands), the laser does not fire, but with a router the router should not stop to spin on rapid moves. This option is there to select the behaviour of the tool during rapid moves. You could check if your PWN VFD option allows to change the option and make sure that it is not enabled.
Also do you have tool changes in your program? If so, you got to be aware the the ‘tool-change’ routine on the stock firmwares was always unusable. You can use my ‘tool-change’ routine that works.
Where is your “spindle rpm” popup located, in the VCarve post processor? If so, is it invoked after each tool change?