I searched the forums before making this post but didn't see anyone else that seemed to have the same issue so here I am.
Yesterday I went to start fishing for the first time and when I leveled up I got the log message "Kai's fishing skill reaches level 0" regardless of level. This seemed odd but seeing how it showed as correct in the main menu I didn't think it mattered. However, I got to level 4 and right before I went to sleep I zoned to try my hand at crayfish and found that I couldn't catch any in bastok mines due to lack of skill. So I checked, and of course, my fishing skill had reset to zero, apparently after zoning.
Today I went to try again and made sure to take screenshots every step of the way to document my progress.
Zone: Port Bastok
Rod/bait: Clothespole/little worms
fish: cobalt jellyfish
screenshots:
http://imgur.com/a/D3yEVI reached level 2 to test it again and just like last time, my skill reset to 0 after having zoned. Nas is a busy guy and I don't mean to pester him to restore my lost skill (though that would be nice) but if anyone else has advice on the issue, i.e. is this a known bug/do I need to fish somewhere else/anything else I might need to know since I'd really rather not spend any more time trying to fish if it's going to be futile either way. I like to fish but not that much that I'd reset to 0 each time, lol.