If you use this mod and Jetpack v0.3.14, switching to or from a Jetpack makes the interface impossible to close, and clicking on an improved combinator again will crash the game with:
The mod Improved Combinator SE (1.0.15) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event ImprovedCombinatorSE::on_gui_opened (ID 88)
Gui element with name qKtZqfDgB5 already present in the parent element.
stack traceback:
[C]: in function 'add'
__ImprovedCombinatorSE__/scripts/game_node.lua:72: in function 'safely_add_gui_child'
__ImprovedCombinatorSE__/scripts/game_node.lua:76: in function 'build_gui_nodes'
__ImprovedCombinatorSE__/scripts/gui.lua:18: in function <__ImprovedCombinatorSE__/scripts/gui.lua:8>
After recovering the game the interface will stay stuck for the players that did this, respawning won't close the interface. (only removing the combinator will work)