Items may be placed in a cart (or rowboat). Items may not be removed from a cart (or rowboat).
Have reproduced on both standard and custom clients. Have reproduced on three different carts in three locations, both on and off claim. Goods are not stolen, no active scents (reference to an earlier cart bug). Have reproduced with one rowboat. Other than that, the item remains usable. I can lift the rowboat, drag the cart, etc.
All was working as it was supposed to just a few minutes before the behavior started, approximately 1 hr 15 minutes ago. Have tried both relogging and waiting for an hour to see if issue resolves. It so far has not.
Running Java 8 64bit update 241, build 1.8.0_241-b07. No Java errors thrown, so no stacktrace. Hope this helps.
(and just let me know if I've missed something obvious)