Hi there gabriela10,
It's vital that all your transactions are correctly entered so your books can be accurate. QuickBooks Online is a great tool able to help you keep track of the expenses and sales made for a project to see its profitability. I can point you in the right direction for assistance with hours on projects.
For help with hours not showing up properly in reports for projects, I recommend reaching out to the QuickBooks Online support team. They'll be able to verify your hours in the system in a secure setting in order to help you make sure they're correctly affecting your projects. You can reach them using these steps:
Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
Social Media: Facebook and Twitter
If you have any other questions, feel free to reach out here.