Occasionally when I join a new server, without changing any of the settings, I just find that the function of left and right mouse clicks are mixed up in game. So, for example, in order to pick a sapling I have to right click on it. For some items that there isn't normally a right click option for it, it is just locked into Inspect item, etc. I have to actually close DST and reload to get rid of the bug.
Randomly occurs, no way to know when this bug will occur or not