514.943 Error MainLoop.cpp:1143: Exception at tick 1255744: The mod Research Queue: The Old New Thing caused a non-recoverable error.
Please report this error to the mod author.

Error while running event research-queue-the-old-new-thing::on_research_finished (ID 18)
...rch-queue-the-old-new-thing__/functions/update_queue.lua:144: attempt to index field 'current_research' (a nil value)
stack traceback:
...rch-queue-the-old-new-thing__/functions/update_queue.lua:144: in function 'remove_research'
research-queue-the-old-new-thing/control.lua:224: in function <research-queue-the-old-new-thing/control.lua:213

https://i.imgur.com/6q909kY

1. Load Game that used to have "Auto Research" with this mod
2. Leave any research to complete
3. Crash

I had Long Inserters Queued in the save, and recently placed some Labs.
Researched crashed the Save on completion.

Error still exists after Removing and Re-Adding from the Modded GUI

This had the same root cause as the other crash: https://mods.factorio.com/mod/research-queue-the-old-new-thing/discussion/5cac63fb04a7bf000b612769
Do tell me if you find any other incompatibility with Auto Research though.