Error in game bug

release-949 (x64)
CHECK failed: C:\rb\ihome\root\SH-OB0-BUILD\stonehearth\source\lib\lua\ai\execution_frame.cpp:1320
Switching unit, while another switch is pending.
Culprit:
frame: stonehearth:top
unit: human work dispatcher
compound: human work dispatcher
frame: stonehearth:work
unit: placement
task_group: placement
frame: task_group:1499
unit: TASKstonehearth:place_item_type_on_structure_2
task: TASKstonehearth:place_item_type_on_structure_2
frame: stonehearth:place_item_type_on_structure_2
unit: place an item type 2
compound: place an item type 2
frame: stonehearth:pickup_item_type
stack traceback:
[C]: ?
[C]: in function ‘suspend’
stonehearth/ai/actions/run_effect_action.lua:100: in function <stonehearth/ai/actions/run_effect_action.lua:47>
[C]: ?
[C]: ?
[C]: in function ‘execute’
stonehearth/ai/actions/run_putdown_effect_action.lua:35: in function <stonehearth/ai/actions/run_putdown_effect_action.lua:23>
[C]: ?
[C]: ?
[C]: in function ‘execute’
stonehearth/ai/actions/drop_carrying_now_action.lua:55: in function <stonehearth/ai/actions/drop_carrying_now_action.lua:35>

stonehearth/ai/actions/idle_top_action.lua:17: in function <stonehearth/ai/actions/idle_top_action.lua:9>
[C]: ?
[C]: ?
[C]: in function ‘run’
stonehearth/components/ai/ai_component.lua:549: in function <stonehearth/components/ai/ai_component.lua:533>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:67: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:533: in function <stonehearth/components/ai/ai_component.lua:529>
[C]: ?
[C]: ?