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LeanFT - Mainframe SetCursor Position command not working

I am trying to connect to Mainframe through LeanFT framework and facing below issue. 

Code:

Window tewindow=Desktop.describe(window.class, new windowDescription.Builder().protocol(Protocol.PR3270).build());

Screen tescreen=tewin.describe(Screen.class, new ScreenDescription.Builder().size(24,80).build());

tescreen.setCursorPosition(3,1);

Error message:

com.hp.lft.sdk.GeneralLeanFtException: An Internal problem has occurred, please make sure the LeanFT sdk was properly initialized.

 

I have checked that Terminal Emulator settings is setup correctly in LeanFT and license is working fine. Is there any other reason that might cause this issue?

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