I have not yet made the Skillbook and started fishing - I did not have "Luck of the Sea" and got normal fishing drops.

Got a "Luck of the Sea" Scroll and used it.

I am not sure if I got anything else after that except luck of the Sea (because I chalked it up to luck after getting it two more times directly after).

So when I started fishing again (after having gotten and used three Luck of the Sea Scrolls beforehand) all I now get is "Luck of the Sea" as drop - I probably had the scroll 10 times now - all in a row.

It seems that the skill is bugged in someway.

Edit: I used all the Scrolls I had and presumably reached max level in "Luck of the Sea" - now other items drop again (I suppose because once max level is reached, the scroll is removed from the loot pool?)

i have same issue buddy

I have the same issue, now I'm only catching more luck of the sea skill upgrades and nothing else ):