If you are in a situation in which you transferred BNB, Matic or AVAX from Ambire Wallet to another wallet or exchange, the transaction was marked as successful in the network explorer, but you cannot see your funds in your other address - do not worry, your funds are not lost!
Ambire Wallet, as well as other crypto wallets, use internal transactions, which put in simple terms are transactions between contracts. Some wallets and exchanges however, register such transactions but do not show them on their dashboard, which is also the reason why you cannot see them. Despite that you cannot see them, your funds are not lost.
What you can do is contact the support team of the wallet to which you sent your funds and ask them for a solution to this issue.
Here is our official statement regarding this issue.