Construct 201 has some new names like CurTime has been changed to TimeCurrent. BarsPerWindow is WindowBarsPerChart and ClientTerminalName is TerminalName and a few others.

If you are running an EA that has been coded for previous builds, you need to check out MetaEditor, go to the Navigator, then in the bottom go to Dictionary and in the base of this Dictionary list will probably likely be Obsolete Functions. Read those because your EA might need to be upgraded.

Among my EA's would not backtest in Build 201 correctly due to the time function change. It is running again. That could have caused some reductions, if you are running an EA reside like I'm.