Hi!
I experienced a small, weird bug.
Between cave river and chasm, I dug a single-tile-width tunnel to the north, making a very long designation.
code:
............D.............
............D.............
............D.............
............D.............
............D.............
............D.............
That designation was prematurely interrupted by that bug that dwarves who can't participate in the dig cancel dig designations on non-digable squares.
code:
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
Seeing that, I removed all designations north of the interruption.
code:
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
,,,,,,,D,,,,,,,
When the miner reached the end of the designation, there was a full-grown tower cap blocking the end of the tunnel:
code:
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,T,,,,,,,
,,,,,,#.#,,,,,,
,,,,,,#.#,,,,,,
,,,,,,#.#,,,,,,
Note that the squares adjacent to the tower cap were undefined/invisible.
So, I designated the tower cap to be cut down, and a carpenter did so, resulting in this:
code:
,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,
,,,,,,,.,,,,,,,
,,,,,,#.#,,,,,,
,,,,,,#.#,,,,,,
,,,,,,#.#,,,,,,
Even though the tower cap had been removed, no new tiles were uncovered. All tiles next to the tower cap remained hidden. When I designated the neighboring tiles for mining, however, I saw a water animation in the one to the left of it - but only as long as it was designated.
Only by having another wall tile (left of the tunnel, 1 tile south of the tower cap) mined was I able to get things uncovered.
Sorry about the lengthy description, but I can't be absolutely sure that whether this is related to the cancellation bug or not.
Deathworks