I had an area designated to mine, 32x32x5 or something like that. After a section of the area had a vertical section where only the 3 center blocks removed, leaving the top and bottom of the vertical pillar, no one mined that area. If I designate an area next to it, without the 3 center blocks removed, mining continues. If I try to mine the area in question, mining stops.
Steps to reproduce:
- Designate an area to mine, any size area with a 5 block height.
- Once 3 blocks are removed in the middle of the 5 block height, suspend mining so everyone leaves, then resume it. I didn’t do this but I assume they walked away to eat or sleep before they would return to mining so pausing and resuming should have the same affect.
Designating to mine the affected area causes mining to stop.
Version Number and Mods in use:
release-687 (x64). No mods.
CPU - 2600k
GPU - 970 GTX