Server TSL behaviour question

Hi:

TSL on cTrader used to work like a "high water mark" previously, example...

If Price=1000@buy, TSL = -100, effective SL = 900
Price changes +25, new price=1025, new SL = 925
Price changes -25, new price = 1000, SL remains at 925
Price changes +25, new price=1025, SL remains at 925

With server-based TSL, cTrader's behaviour is quite different...

If Price=1000@buy, TSL = -100, effective SL = 900
Price changes +25, new price=1025, new SL = 925
Price changes -25, new price = 1000, SL remains at 925
Price changes +25, new price=1025, SL changes to 950, effective TSL=-75

The first algorithm seems to be the correct one to me.

Please clarify which of the above behaviours we should expect to see in cTrader, and why/why not?

Thanks