Ha, sorry about that. Did it play the whole ending again as soon as you loaded in, or did you just land the Lamplighter again straight away? If it's the first one that's a bug I want to squash.
Viewing post in The Wee Pier - An Island Fishing Idle comments
Since I had a lot of stats I guess it just got the drop of the last legendary fish, or maybe it was already in and I hadn't that luck before I don't know !
You could easily upgrade the gameplay a lot by adding a prestige after that that allows to go Shallow 5 + having better grinding + more level on things, maybe another type of upgrades/farms..