How it happened:
I had my Makarov (IJ-70) in hand when I found a crossbow. It was empty so I crafted some bolt. I reloaded the crossbow, took my IJ-70 in hand and went to the police station. Then, I the took the empty BK-43 in hand that was on the ground and I noticed that the "loaded" status on the crossbow (in my back) was shrinked.
After swapping the weapons in my back then hand to check if the crossbow was still loaded I noticed that the "loaded" status displayed a shotgun shell on the crossbow that was on my back. The shotgun was empty.
{F4492391}
{F4492390}
{F4492389}