Irreplaceable blocks (First Bug Encounter; Happened Random)

Summary: I was making a pathway to connect some houses and I mined out the floor. After that happened i tried to place a pathway but there are 2 blocks that won’t get covered. They just stay mined and cant be fixed even if I load a later save.

Steps to reproduce:

  1. Mine floor
  2. Try to place pathway

Expected Results: All blocks are replaced

Actual Results: An amount of blocks are not possible to replace or fix

Notes: This happened randomly, I cant fix it no matter what I do.

Attachments:

Version Number and Mods in use: release-524 (64x)

System Information: release-524 (x64)
…rth/services/server/build/scaffolding_builder_1d.lua:335: assertion failed!
stack traceback:
radiant/modules/common.lua:214: in function 'report_traceback’
radiant/modules/common.lua:225: in function <radiant/modules/common.lua:219>
[C]: in function ‘assert’
…rth/services/server/build/scaffolding_builder_1d.lua:335: in function ‘_cover_project_region’
…rth/services/server/build/scaffolding_builder_1d.lua:268: in function ‘_update_scaffolding_size’
…rth/services/server/build/scaffolding_builder_1d.lua:251: in function 'obj’
radiant/modules/events.lua:76: in function 'instance’
radiant/modules/events.lua:209: in function <radiant/modules/events.lua:203>
[C]: in function 'xpcall’
radiant/modules/common.lua:234: in function 'xpcall’
radiant/modules/events.lua:203: in function 'trigger’
radiant/modules/events.lua:272: in function '_trigger_gameloop’
radiant/modules/events.lua:323: in function '_update’
radiant/server.lua:62: in function <radiant/server.lua:58>