Thanks for reporting this issue, Illustrator team really appreciate this. We are able to reproduce this issue and it is currently under review.
An error occurred while saving the commentDCH commented
I have this problem too. Very difficult to select a line and move it. If a stroked shape it is impossible to select without repeated tries. If a line, you have to click the endpoint. It does not allow selection any where else on the line without repeated tries. This bug has been very frustrating since I upgraded to CC. I am running 23.0.6, but see an update so will see if that fixes