If I come across an orange, for instance, which is not in my inventory, I right click on it and select "eat." My character shoulders the long arm, oe melee weapon, but fails to pick up the orange. I have to right click on the orange a second time, select "cancel current action" and then select "eat" again.
I had this issue prior to 0.54, if I would quickly turn away from an item, after clicking "eat." With 0.54, however, I have this problem, even if I am careful not to move, after selecting "eat."
I experience this problem with fruit and vegetables approximately 70% of the time. With canned goods, I don't seem to have any problems with picking up the items.