Thank you for providing more details, @jlrrv. 

In the latest update, the Preview button has been relocated and can now be found next to the Billing Address field in the Customers tab.

We understand that adjustments to updates can take some time, and we truly appreciate your patience as you navigate the new layout. 

Here’s where you can find it in the updated layout:

Feel free to click the Reply button, if you need any additional assistance with the new update.