It seem that i have issue with resupply some good in monumental dockland (especially i noticed that with wood and grain).
When storage get supply to full it seems that in harbour icon exclamation icon don`t refresh and even if over time Tobias coming back to resupply he wont top up any wood or grain as he thinks storage is still full. To get back in trade with Tobias i need to take wood, grain off and put it back to refresh icon so exclamation mark will disappear. I`m not sure about other products yet. But problem appear to be after 14.1 update. I`m 100% sure before that trade with Tobias was fine for me.