Is the built in RSI calculation identical to  Metatrader 4's built in RSI calculation?

I'm getting different RSI values from MT4 and FSB, both using same data set. I checked bars manually, the price data all match. Both RSI have same default settings (simple,close,14). So if the price data are same shouldnt RSI values also match?

I removed autoscan, cutoff etc. to match dates.

On FSB, i set open position if RSI crosses 30 upwards. So on MT4, RSI never felt under 30. On FSB, it is already under 30 and crossing up.

nothing special on strategy:

If RSI settings and data set are same how can RSI value different that much? It is causing FSB to open trades which shouldnt do?

Any settings can cause this?

PS: sry for lots of pics.