Dwarf Fortress Bug Tracker - Dwarf Fortress
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0007697Dwarf FortressVegetationpublic2014-07-28 13:292014-08-29 03:14
normalminorhave not tried
Toshiba LaptopWindows7
0007697: Collapsing trees remove floors
If the ground under the tree is dug out, a collapsing tree will remove floors from the surface. I haven't tried it with built floors.
Dig out the first underground level, wait until a tree collapses nearby.
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duplicate of 0006704resolved Toady One Already-felled trees "collapse" when mining under their former roots 
Issue History
2014-07-28 13:29DebocheNew Issue
2014-07-28 13:32DebocheNote Added: 0027804
2014-07-28 14:59FootkerchiefNote Added: 0027813
2014-07-28 14:59FootkerchiefRelationship addedduplicate of 0006704
2014-07-28 14:59FootkerchiefStatusnew => resolved
2014-07-28 14:59FootkerchiefResolutionopen => duplicate
2014-07-28 14:59FootkerchiefAssigned To => Footkerchief
2014-07-30 06:03DwarfuRelationship addedhas duplicate 0007734
2014-07-30 06:03DwarfuIssue Monitored: Kirkegaard
2014-08-01 06:00NevenrialIssue Monitored: Nevenrial
2014-08-25 08:12lethosorRelationship deletedhas duplicate 0007734
2014-08-28 10:04KirkegaardIssue End Monitor: Kirkegaard
2014-08-29 03:14NevenrialIssue End Monitor: Nevenrial

2014-07-28 13:32   
Just noticed it happened across two z-levels I had dug out. Maybe it would happen all the way down until it hit an undug level.
2014-07-28 14:59   
It's normal for cave-ins to break through floors. The buggy aspects of tree collapses are at 0006704