The following entities from other modes now cause an error when placed inside the editor:

Stack Combinator (1.2.13)

Error while running event compaktcircuit::on_built_entity (ID 6)
Мод Stack Combinator (1.2.13) вызвал неустранимую ошибку.
Пожалуйста, сообщите об этой ошибке автору мода.

Error while running event stack-combinator::script_raised_destroy (ID 80)
__stack-combinator__/scripts/staco/event-setup.lua:27: attempt to index local 'sc' (a nil value)
stack traceback:
    __stack-combinator__/scripts/staco/event-setup.lua:27: in function 'handler'
    __stdlib__/stdlib/event/event.lua:342: in function 'pcall'
    __stdlib__/stdlib/event/event.lua:359: in function 'dispatch_event'
    __stdlib__/stdlib/event/event.lua:438: in function <__stdlib__/stdlib/event/event.lua:396>
stack traceback:
    [C]: in function 'mine'
    __compaktcircuit__/scripts/editor.lua:1015: in function 'on_build'
    __compaktcircuit__/scripts/editor.lua:1047: in function 'previous'
    __compaktcircuit__/scripts/tools.lua:162: in function <__compaktcircuit__/scripts/tools.lua:161>

Scanning Radar (0.3.4)

Error while running event ScanningRadar::on_tick (ID 0)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
    [C]: in function '__newindex'
    __ScanningRadar__/control.lua:380: in function 'scan_next'
    __ScanningRadar__/control.lua:122: in function <__ScanningRadar__/control.lua:117>

Thanks for the report.
Should be better now (release 1.0.10)