In case you are wondering why this is happenlng:
The currency exchange rate bounces between a correct value and a ridiculous value. Therefore every time the currency rate is completely off, you see the numbers that are way off the expected values.
After a while the currency exchange rate drops back to the real value, and everything looks right, before going back to a ridiculous value.
While this happens in the demo account, there is nothing strange going on in the live acccount. There the currency exchange rate is correct and everything works fine there.
I know this information, since I am using the API to get market data, and there you get the exchange rate as information and I can see the value going back and forth between real exchange rate and something 1000x off the expected value.