I'm not entirely sure that this is a bug, but when i am charging the FSD to jump to another system on the Navigation panel the 'Cancel' (Jump) buton keeps on getting highlighted if i try to select the Galaxy Map or the System Map. When i am out exploring i will often start the FSD and then open the System Map to have a look at what i found or sometimes open the Galaxy map for other reasons. It is not possible to do this now.