GUI Component ID changing pattern

Why the GUI Component IDs change the pattern when I use different connections?

For example, when I use connection "EP1" the GUI components are named by numbered indexes.

When I use connection "EP2" the GUI components are named by text indexes.

The both pictures above are from input MB52 transaction.

In the way, a script written to EP1 connection does not work at EP2 connection, because can't find the components by ID.

Best regards,

Eduardo DONATO.