Auto update from spreadsheet not working in App and Editor

Hey,
we have noticed that for some reason the auto update is not working anymore for our apps. We are using Google Docs as our spreadsheets.
The "Auto Update Frequency" is set to "always" with Delay 5.


Insinde the editor we get a warning:


And after building the app and changing somthing inside the spreadsheets nothing actually happens in the app.
Replacing from Google in the editor is working fine, but not realy the solution, because we need to change things without App Updates in the stores :/

I tried upgrading to the newest verion 2.8.14f1 (from 2.8.13f1) but that changed nothing i guess (even the version number in the I2Languages file still says 13).

Hope you can help me out there

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