hot key

I have had hot keys stop working. Mostly the “M” move to hot key. I select my ships to move, click “M”, then click the hex I want them to move to and my ships us-select. This seems to happen about turn 20, even W fails at times. I have found that M works if it in the same system but if you want your ships to move to another point in another system it fails. This has only happen sense the last patch1.44.