I don't know how many times I've done this but I hear this sound and assume something has gone wrong and retreat my general/marshall only to find that it is just another general or a friend moving position.
On an adventure not really a big deal but on a expedition where time is critical and you are doing several things at once and it matters big time. Usual you think you got the block wrong and retreat your leader killing marshall and waste a block or 2. Efficiency and time wasted.
Please could you change these sound notifications, not a big deal to do but would make such big difference.