Big EMAs are not correct. This is probably a performance drawback / smoothing / rounding issue. Should apply the same to standalone api.

You can check that easily:

M1 1440 is the same as M5 288 etc.

The M1 1440 is always a few pips off sometimes less sometimes more.

Might be a smoothing or some other rounding issue.

Checked at 3 points right now on EU e.g. on latest bar it's about 7 pips off, other bar 1000 back its about 4 pips off.

Smaller EMAs like 288 50 etc are more or less correct.

This is to be expected at the beginning of the smoothing range but on the latest bars 7 pips off with 3500 bars displayed is a bit very far off.