Why doesn't the indicator show up? Where is the error?

Why doesn't the indicator show up? Where is the error?

By default, Indicators won't show up in Tester during test.

You will need to pause and load indicators by yourself then continue.
if you have template, just load template so it is ready for your test environment with your own indicators.

Once tester is completed, it will load your indicators called from experts.
if you don't set this as false, all the indicator you have called will show up in chart.

if you don't need those to show up, you set this flag as false before you call indicator from experts.
example you used, if you don't set that as false, it will be on your chart after test is done.

HideTestIndicators
The function sets a flag hiding indicators called by the Expert Advisor.
void HideTestIndicators(
bool hide // flag
);
Parameters
hide
[in] Hiding flag.
Returned value
None.
Note
After the Expert Advisor has been tested and the appropriate chart opened, the flagged indicators will not be drawn in the testing chart. Every indicator called will first be flagged with the current hiding flag. It must be noted that only those indicators can be drawn in the testing chart that are directly called from the expert under test.
Example:
HideTestIndicators(true);
MaCurrent=iMA(NULL,0,56,0,MODE_EMA,PRICE_CLOSE,0);
MaPrevious=iMA(NULL,0,56,0,MODE_EMA,PRICE_CLOSE,1);
HideTestIndicators(false);