[GNC] Currency exchange rates inconsistencies for invoices

[Mtc Gugu]

Hi!With the risk of repeating maybe this topic, would like to as for some help on the matter. 

Case:I'm using 3 currencies & trading accounts for a business setup. Default is SEK, but all the invoices are in USD. Gnucash 4.1.So basically I send/ receive the invoices/ bills in USD, then transfer them to SEK, sometimes with Euro conversions in-between, as my bank doesn't accept direct conversions. And all the reports needs to be in sek.

Problems:1. Though conversion rates for individual transactions are correct, the total amount in the Account pane, or in any Report, besides Transaction Report, do not tally. 
It doesn't match neither by making the conversions at the individual level of the transactions, nor by manually updating the rates in the price db. I've tried all the 4 Price Source options in the Reports options. So, at the end of the day, I can't pull out a Report with the correct balance/ total.Any tips on how to address this issue?

2. If an invoice is re-posted/ changed/ edited after an initial setup, it is stuck with the same exchange rate, no matter what. Even if I create a totally new invoice for the same day, it is still stuck with the same exchange rate. 
Any idea how can the Currency Transfer (Transfer Funds) dialog box can be forced to open every time (or at least on demand) when an invoice is changed/ re-posted? Deleting the entry for the date in the Price db doesn't work.

Though I've browsed the mailing lists, still can't find a reasonable solution.
It seems to be a Price Source issue. 
Should mention that i don't need an average, but the exact price on the exact date. 

Any help will be immensely appreciated!
Br, Elize