Beko washing machine door lock delay

I have a beko washing machine that is just under 3 years old and it has started to develop a fault. Wonder if anyone has experience of this before, and there is a simple solution? Probably clutching at straws, but thought no harm in asking.

The door won't open until 2 to 3 hours after the wash finish! Anyone come across this really odd issue before? It seems that the delay mechanism has gone wonky and so think 2 to 3 hours is probably equivalent to a minute!