How to reproduce:
1. Open the attached "LocalizationGoogleSheets repro" project
2. Select "Google Sheets Service.asset" Asset from Assets > Localization folder
3. Fill in Client Id and Client Secret fields and click Authorize (https://developers.google.com/sheets/api/quickstart/dotnet?authuser=2)
4. Select "UI.asset" from Assets > Localization > UI folder
5. Click "Create New Spreadsheet" in the Inspector window
6. Click Push in the Inspector window
7. Click the Open button which is located under Create New Spreadsheet button in the Inspector window

Expected result: the resulting google sheet contains all the data which UI String Table contains
Actual result: the resulting google sheet has all of the data missing below row 71 (Key Id 76)

Reproducible with: 0.7.1-preview (2019.4.2f1, 2020.1.0b16, 2020.1.0a16)
Could not test with: 0.6.1-preview and earlier (Google Sheets support doesn't exist)

Notes:
-Sometimes an authorization error occurs at step 5, restarting the Editor usually solved it and reproduction steps can be continued