Tabs in v7 are being ignored

You are trying to cut a slot as narrow as the tool which is almost 8 times deeper than the diameter of the tool.

Where possible avoid slotting and add geometry and cut as a pocket

and/or

and consider leaving a roughing clearance and taking a finishing pass.

You should offset by tool diameter plus 10%:

and cut as a pocket down to tab height:

(and move this toolpath above the Contour)

and change the Contour to start at the bottom of the pocket:

If the file is then exported to G-code, the tabs show: