Oddness in soybean oil,ZL month may 2019

I have been using amp broker, and found some thing odd in the chart soybean oil, ZL
Below is the chart from amp but when i compare with other charting software it seem i cant find any long doji at that particular time

 

The date is on 19th feb

 

With Esignal I have the low of that bar as 30.53 and high of 30.55, so looks like you got a bad tick.

 

What is bad tick

 

AMP is a broker/fcm, not the data provider/vendor.

 

Yes i know, my data provider is CQG
My question is why. ..

 

60 min ZL chart from CME site...

NOTE: data source is CBOT, vs Globex on your chart.

 

Is there any different between globex and cbot?
I thought it should the same

 

I agree, but I'm not 100% sure.... globex is a "marketplace" and CME/CBOT are exchanges which by some definitions, are also marketplaces.

Even our mismatched examples, why would one say globex and the other cbot? Is it reference to "venue" and not data source? ZL is a globex product, that there is no doubt. Pricing/data source/venue should be crystal clear. But...