Help with DAX Allexcept filtering

Hi Paul,

Its not working. I had tried adding the category column to ALLEXCEPT before but it changes the behavior completely. Instead of max work date from entire category it just simply repeats the work date. I can send you the file or you can try it yourself. My requirement is to simply unselect category D from visual filter and then have the measure return max date from remainin categories i.e. after excluding Category D via visual filter, for Item 1, the maximum work date should be 3/1/2020 and for Item 2, the maximum work date should be 9/1/2020.