Numeric Text Field - propery .value wrong number

i have pity issue.
I have simple form with NumericTextField with integer number.

Tablet 1: Once user enters value 2 then script reads self.getSibling(“numericTextFields”).props.value it returns value 2. Thats ok.
Tablet 2: But on other tablet user enters value 2 and self.getSibling(“numericTextFields”).props.value returns value 1.

Unfortunately this behaviour is persistent for several hours, that the malfunction in returned values can switch between tablets. Tablet1 is wrong one Tablet2 is wrong (tommorow it may change).

Do you have any idea how to solve this issue?
Thank you a lot for any idea