At first it was not synchronizing but later it showed the coin that I received on the history but the wallet balance is not shown.
This also happened to someone that I know but I told him to use another wallet to send the coin and he did that after he imported his seed phrase on another wallet, made the transaction and it was successful.
It's not a big deal it's sometimes either a derivation path issue or a syncing problem. All the times I've faced this issue on cake wallet you just have to continue refreshing the wallet it will eventually display if it doesn't you can close the app and re open it probably a couple times it fixes itself.
I've had such problems with Mycelium in the past, and in those cases it took a while for the balance to show. Maybe the server is lagging?
You should move (bottom-left) this to
Wallet software.
Anytime I hear mycelium I get a stomach ache lol... It's literally the king of derivation path issues and that's a newbie killer. Nonetheless the only wallet I've never really had similar issues with is ELECTRUM.