Planner Category Labels on Outlook tasks

Can anyone suggest a way to bring through the correct category label for planner tasks to outlook tasks. My tasks pull through  - but they are then categorised under weird and wonderful categories e.g. j6gy02mIEOV6XY68lgP_ZcAMs8R instead of 'Marketing Team'. They appear in the same place  Indicated in the same place as the colour coded labels categories normally appear! And when you sort your to-do list by category, this is what appears, instead of the planner name? Images attached that show the label in situ!