mtf indicator can not show in the new 840 version

Then it is probably poorly coded or not compatible in some way.

https://www.mql5.com/en/code/7227

can this MTF MA indicator be compiled and run successful？

I compiled it ok and it seems to work. I haven't checked the code to see if it works correctly though.

i checked the mt4 version and confirm it's ver 4.0 Build 851 (30 July, 2015)

and the indicator do not work

i uninstall the software and delete the saved configuration, and then reinstall, download the .mq4 file and compile, it does not work!