I’ve been trying to convert since the change to bedrock, mine usually crashes at 93%. One time early in the bedrock release it converted, however the chucks where my item sorter/ bulk storage area failed to convert and in its place was ocean chunks. At the time I had my only shulker box in my inventory. Since then I have tried after every update and it hasn’t made it past 93%
My world converted all chests seem to be in order, no crashes since converting. The only problem I’ve encountered so far is that pistons aren’t working correctly