It's happened Twice to me, i have 2 Villager with both have their own job at max level (armorer and farmer) and somehow, they two changing job into fisherman in front of me! I see the green particle too, those Villager keep the max lvl trading though, but i hate it when it's happened, because my base is surrounded with barrel. Please fix this
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Thank you for your report!
We're actually already tracking this issue at MCPE-62080, so I will resolve and link this ticket as a duplicate.
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