Non-recoverable Error:

The mod Merging Chests (5.2.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event WideChests::on_player_alt_selected_area (ID 52)
__WideChests__/control_init.lua:89: Can't revive ghost for getting its bar
stack traceback:
    [C]: in function 'error'
    __WideChests__/control_init.lua:89: in function 'get_total_bar'
    __WideChests__/scripts/event_handlers/split_chest.lua:56: in function <__WideChests__/scripts/event_handlers/split_chest.lua:46>

Happens when un-merging ghost and build chests at the same time.

Could you provide me with a save file I could use to replicate?

save file

Thank you, will check it out tomorrow. In the meanwhile you can revert to 5.1.1.

Found the problem...it is the Foundantions mod which doesn't allow placing entities on the ground.

Splitting ghost entities requires being able to copy it to different surface (where the copy will be revived), which Foundantions prevent because they lab tiles are not foundantions.

I created bug report for the Foundantions mod, since this would be problem during normal gameplay when you try to place blueprint of a merged chest off foundation.

Should be fixed in 1.0.10 version of Foundations mod

Non-recoverable Error:
The mod Merging Chests (5.2.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event WideChests::on_configuration_changed
The mod Reverse Factory (8.2.14) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event reverse-factory::on_surface_created (ID 63)
reverse-factory/control.lua:207: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
reverse-factory/control.lua:207: in function 'addSurface'
reverse-factory/control.lua:129: in function <reverse-factory/control.lua:128>
stack traceback:
[C]: in function 'create_surface'
...ts__/scripts/event_handlers/on_configuration_changed.lua:4: in function <...ts__/scripts/event_handlers/on_configuration_changed.lua:1>

happens when trying to load map