Hi @paper agate ! Thank you for your respond 
Sadly I dont have the video when the bug occured 😦
I"ll tried to explain it and hopefully I'tll give the rough picture of the bug:
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Was fishing in the forest river, standing on the ground, barely touch the water. Everything is normal.
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Fishing rod caught a fish.
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I press X (on console) 1 time, to catch the fish
This where the character body dragged into the water (more like on top of the water, as you can see in the picture)
- After the character's body (along with the rod and the fish) moved (more or less to the X axis) onto the water, I can fish normally but then stuck on this area and can't move.
So it's not just my character that moved, but also the fishing spot. The motion was kind of fast, but I can clearly see the character dragged (not walk, Body in I-pose but holding the fishing rod)
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Tried to fish few times but fishing activity only appeared when I fish a trash. When I caught what I supposed to be a real fish, the fishing activity is suddenly stopped (almost like when I cut the rod)
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Able to escape after I tried to use the hammer on full power(?) by holding the X button on console, facing the land
This successfully make the character doing a dash jump(?) leaping the bug area
If video is needed, I can try to fish around the area and hopefully trigger the bug.
Anyway, this is the game version I forgot to mention:
Game Version: v1.1b-1237
Hopefully this can help explaining the Bug even better ❤️