Error in quantities while adding items to form

Error in quantities while adding items to form

More than an error it is a "weird" behaviour, since quantities are added correctly to the specified field but randomly another field value is changed.

In my specific case, while tempting to modify quantity in "Riepilogo_Alimenti" from the main form "Gestione Casa" ( which is a list of look-up fields with conditionals show/hide on load ) a random element quantity is variated.
Specifically, adding one ( 1 ) item to the third last object in Riepilogo_Alimenti causes and increment of nine (9) in the the third - from the top - object in the same from.

Script in charge of the operation is located in the On Add --> On Success section of the Form "Acquistati" and it's intended to operate in an if....else cycle.


Thank you in advance for your precious help.

Application name: Gestione Telematica Casa
Support Access: Granted