Lately I've been working with incremental refresh and found that while RangeStart changes with the settings for incremental refresh the data does not go past the RangeEnd date.
I looked through the documentation and maybe it is there, but I didn't see it! So if you find yourself in this situation, the solution is to push out that RangeEnd and re-publish to have it set it all up again. I did try ALM Toolkit to update the RangeEnd, but it still didn't push the new data.
Instructions on how to implement incremental refresh are available in the Microsoft docs, https://docs.microsoft.com/en-us/power-bi/admin/service-premium-incremental-refresh