I (think I) solved my own issue,

If anyone has the same problem with offset prints - when updating flashprint firmware, update the dreamer at the same time! Otherwise things get lost in translation...

I hadn't considered this to be an issue and as I never plug my printer in or connect via wifi... But looking back it all started when i updated the flashprint...

I will update when this print finishes and let everyone know if i was successful in updating firmware and re centering nozzles!

Thanks for looking!