Why tick volume of one bar going changing as the time go ahead?

 
In example, today the volume tick for bar AUDCAD at 6:30 am, just formed, was 1292. At the end of day the tick volume for that bar had changed to 2140. I'm using a demo account of ICMarkets broker. Please help with this problem.
 
How do you expect us users to help? A single anomaly means nothing. Glitch prices are corrected all the time. Generate more data and then ask your broker.
 
whroeder1:
How do you expect us users to help? A single anomaly means nothing. Glitch prices are corrected all the time. Generate more data and then ask your broker.

may be helping sharing experiences. ??... anyway I did ask to my broker 3 days ago and told me that they going to see the problem but no answer so far. I always have thought tick volume is not a reliable indicator and I already solved the problem creating a formula that replace the information given by that indicator...

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