Z Axis issue. Bit starts cutting about 1/2" above material

After I set the zero on the Z-axis then I start the program. I set the Z-axis using the probing block as well as using the paper method. The bit starts the process but instead of moving down to zero on the material, the process runs the first couple of passes above the board.

I have seen several people on Facebook having the same problem as I am.

I have checked the minimum safe Z height. I checked the cad program which is Carvco Maker. The bit is tight in the collar. The router without the bit has room to almost touch the material so there is plenty of room with the bit.

I am using gSender and Carveco Maker.