External Supplier registration (Redwood)- error message behaving differently in different situations

Summary:

scenario 1: while filling out a certain page for example Address page if we miss out on selecting any purpose and hit on continue, the error message states out that anyone of the purpose has to be selected. post that once that purpose is selected, the error message vanishes and it lets us move to the subsequent page

scenario 2: there are certain fields which are required/mandatory when missed out on filling, it lets us move to the next page without throwing any error. Only when we go forward till the last and submit the request, the error pops us. for example attachment on company page.