There are 4 categories of possible issues - electrical, mechanical, software, and 'user'.

I think with your experience that rules out user. As it is OK with other router bits that rules out electrical.

As it occurs with this specific bit then mechanical as other have suggested is possible, the obvious one being slipping up inside the collet. This can be checked by touching off before and after the cycle (paper is fine by the way). If it is this then get a 1/4" collet. Just personal preference but I always match the collet diameter exactly to the tool diameter.

The other one is software which should be considered further. I like Boyan's suggestion of copying a good tool in the library and editing the data to suit the faulty tool.

If that is no good then you can try cutting out a simple square in some scrap, one with tabs, and one without (screw the stock down through the square to avoid damaging the cutter when it breaks free). Ask for the usual 15.6 mm depth in a 15 mm part or whatever and see if the software is getting hung up on the tab part creating a bit of odd code.

I used a sister product called Vectric Cut2D many years ago but have long since migrated to F360, even so I don't remember anything like this.