Error while running event level::on_selected_entity_changed (ID 52)
...tion Support/factorio/temp/currently-playing/control.lua:8: attempt to index field 'goal_info_frame' (a nil value)
It happens after I click 'close' on the 'Migrated content' popup.
Additional notes:
- I encountered this a few days ago before 0.15.11 so it's not a very recent thing.
- I have 20 saves in total. All of them work except this one.
- One of my other saves is from 0.14.19 and another one is from 0.13.20.
- I've played over 20 hours on this mission. Please help me!