I'm coming back to SH4 after many years away from it.
I'm also having problems dropping supplies from a U-boat after electing to postpone the drop (air raid was in progress when I arrived).
I see the little crate icon in the top right corner of the screen but clicking on it does nothing. I'm within range of the shore at 0 knots...
Am I missing something?
P.S. thanks to the folks that created FOTRS Ultimate. Not only a great mod, but it got me running SH4 in Win10 without crashes.