behaviour of accounting page upon defining or modifying supplier

We recently upgraded from 12.0.6 to 12.2.5. upon defining or modifying supplier (accounting page):

1- in 12.0.6, I navigate to Liability tab, enter GLCC, navigate to prepayment tab, enter GLCC, and safe. all liability and prepayment GLCC are saved

2- in 12.2.5, if i followed the previous senario, change in liability GLCC will be lost. Only prepayment GLCC will be saved (this where i made the action> save).

I expect that all cahnges whithin the page saved once and I do not need to save every change made to same page