There is an issue in "transform field" on feedback.
Attached an example. I press a button that sends a command of a loopback system . This command is evaluated in a feedback that transforms the value of a digital join (decreases 3000 from original digital join) and presents in a serial join.
correct situation (v211 and iViewer for iOS): for the button with digital join 3001, the result in serial join 1 is "1" , digital join 3002 results serial join 1 = "2", digital join 3003 results serial join 1 = "3"
issue in V4.1.2-beta (incorrect situation): for the button with serial join 3001, the result in serial join is "3001", digital join 3002 results serial join 1 = "3002", digital join 3003 results serial join 1 = "3003" , despite the formula in transform field (value-3000).