2018 data (depreciation, 1099-R forms, carryover amounts) not transferring over to 2019.
It could be related to the back end QBO messing with the program. Many people have lost data, you could be part of this same kerfuffle. @IntuitBettyJo could maybe find out.
I couldn't find a relation between this and the missing clients. Were you able to find a solution?