Please try the following:
- Refresh your browser.
- Try logging out of Glide completely and logging back in again, then refresh.
If you are using certain functions like ARRAYFORMULA(), or you have a column formatted as a checkbox (Insert>>Checkbox), when adding rows via the app, Glide will append rows after all of the seemingly empty rows, because these rows are not empty. So, if you think you are missing data on the Google Sheet that you see in the Glide Data browser, look at the very bottom of your Google Sheet. It is safe to delete all empty rows as Glide will append new rows as needed.
Another suggestion is to make a copy of your Google Sheet in Google. Then go to Settings/Data Data Source and select that new sheet as your data source.
If the issue persists please create a screen recording that shows the data row in the Glide builder that is not in the sheet, and then click on the edit sheet button and show the same sheet and the area of the sheet you would expect the data row to show. Also, scroll down to the last row of the sheet to make sure it’s not there. You can use something like https://loom.com/ or any other screen recording software.
If all of this fails create a Support Ticket using this form.