MT5 Custom SYMBOL can't show K bar

 

MQL5 Custom SYMBOL can't show K bar,

import history bar data.

for example  000001

there is a 1990.hcc file in the dir Bases\Custom\history\000001 ,

so the k bar can't display.

if i delete the file 

it shows ok。


why? can you give me some help?

thanks very much!

 
What's the "K bar"?