To Metaquotes - data discrepancy

 
Please explain why is there data discrepancy between MetaQuote account Interbank FX account both connected to Interbank-Demo Server.

Both accounts are opened on build 186, Nov. 10, 2005

For example I have opened in both accounts EURUSD,M5 and EURUSDm,M5 and sampled
2005.11.25. 15:25 Bar

at EURUSD,M5, Open=1.1726, High=1.1730, Low=1.1726, Close=1,1730, Volume=10, and
at EURUSDm,M5, Open=1.1726, High=1.1730, Low=1.1726, Close=1,1729, Volume=21

Essentially my indicator acts totally differently in each account.

Is it normal?

Which account is more reliable MetaQuote or Interbank FX demo account?

Is data in demo account reliable?
 

For example I have opened in both accounts EURUSD,M5 and EURUSDm,M5 and sampled
2005.11.25. 15:25 Bar

at EURUSD,M5, Open=1.1726, High=1.1730, Low=1.1726, Close=1,1730, Volume=10, and
at EURUSDm,M5, Open=1.1726, High=1.1730, Low=1.1726, Close=1,1729, Volume=21

It appears that the problem is in the history data files.
How can I synchronize or have same history files?
Should I just copy data from one account into the other?
Is there any way to refresh the history data in both accounts?
Reason: