Using /api/Wallet/history (Cirrus Full Node 1.0.6.4) returned incorrect values for some transactions. These transactions turned out to be ones where the transaction was one like https://cirrusexplorer.stratisplatform.com/transactions/00b4cfead03ab2bda66738c3fe0fbfbb422def725f448c518647075704e826ca where two addresses from the same wallet received funds in the same transaction (in this case they also had the same amount - this might be caused by excess deduplication).
Previously (in 1.0.4.2), the total amount for both lines was returned, now only the amount for one line was returned. The difference was first seen in 1.0.5
*** After further testing, this issue appears between 1.0.4.3 and 1.0.4.4