There are a few reasons why the check is not showing in your actual bank account, Amaya. I'll outline some scenarios below.
Before proceeding, I'd like to know if you're using QuickBooks Payments. Do you have QuickBooks Checking? If so, I've got some information for you.
If you're referring to changing the bank account where the check was deposited, this is currently unavailable in Solopreneur. However, if you transferred money from QuickBooks Checking to your external bank account, it takes between 3 - 5 business days to move money on average.
On the other hand, if you have QuickBooks Payments, you can change your bank account in the Merchant Service Center by following the steps below: