Memory issue after Power BI April update ?

My model is built on Power BI Desktop, importing data from sql server DB. the model size is not so large :45 Mb.

the visual that trigers the vast memory usage is a pareto% :

TotalNetSalesAllClients := CALCULATE([Total Net Sales],All(DimClients))
AccountRank := RANKX(ALL(DimClients),[Total Net Sales],,DESC)
ParetoValueAccount := SUMX(TOPN([AccountRank], ALL(DimAccounts),[Total Net Sales]),[Total Net Sales])
Pareto%Accounts := DIVIDE([ParetoValueAccount],[TotalNetSalesAllAccounts],BLANK())

when writing it I see that there is an inconsistancy with the use of DimClients vs DimAccounts (they are the same one ..).

basicly the original name was DimClients wich I later change to DimAccounts, assuming that the model can handle it-and it did.

I now assume that the upgrade of the model file didn't handle that  change correctly and was kinda "searching" a non existing DimClients until memory error.

I am checking this now and will write back if this is correct.