Wenlock Burton, I am having a very similar issue with world conversation. Old items stored in chest or furnaces changed general to new version items. Red stone became polished quartz stairs, and enchanted diamond sword became an enchanted jungle-wood trap door, coal in furnaces became blue coral etc. interestingly, the world itself in someways did update to 1.14 the water is different along with bio, rabbits/fish other realitively new passive & neutral mobs spawned, and in game mechanics changed. I haven’t tried leaving towards the edge of the world boarder then returning. Figure this might change mob generation, but for the items no clue. Strange thought that only some items were affected like the sword while other items like my bow remained the same with the same enchantments.
Wenlock Burton, I am having a very similar issue with world conversation. Old items stored in chest or furnaces changed general to new version items. Red stone became polished quartz stairs, and enchanted diamond sword became an enchanted jungle-wood trap door, coal in furnaces became blue coral etc. interestingly, the world itself in someways did update to 1.14 the water is different along with bio, rabbits/fish other realitively new passive & neutral mobs spawned, and in game mechanics changed. I haven’t tried leaving towards the edge of the world boarder then returning. Figure this might change mob generation, but for the items no clue. Strange thought that only some items were affected like the sword while other items like my bow remained the same with the same enchantments.