Same issue here. After updating to 0.18.13 the UI becomes weird. Every icon now becomes a big button, and clicking any button would crash the game.
The mod Production Statistics Monitor HUD (0.18.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event production-monitor::on_gui_click (ID 1)
Unknown style small_slot_button
stack traceback:
production-monitor/util/display.lua:208: in function 'minDisplay'
production-monitor/util/display.lua:248: in function 'addUpdateDisplay'
production-monitor/util/calculation.lua:69: in function 'updateCalculations'
production-monitor/util/playerMgr.lua:165: in function 'updateDisplayPlayer'
production-monitor/util/display.lua:411: in function 'resetGuiEvent'
production-monitor/util/display.lua:166: in function <production-monitor/util/display.lua:79>
stack traceback:
[C]: in function 'add'
production-monitor/util/display.lua:208: in function 'minDisplay'
production-monitor/util/display.lua:248: in function 'addUpdateDisplay'
production-monitor/util/calculation.lua:69: in function 'updateCalculations'
production-monitor/util/playerMgr.lua:165: in function 'updateDisplayPlayer'
production-monitor/util/display.lua:411: in function 'resetGuiEvent'
production-monitor/util/display.lua:166: in function <production-monitor/util/display.lua:79>