App on Google Play always shows "Update" instead of open [closed]

Solution 1:

I've contacted Google Play support:

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UPDATE 2 : enter image description here

UPDATE 1 :

Problem solved guys,Google play finally fix their problem by sending an update of (Google Play Libraries), so you don't need to do anything. if you still seeing the UPDATE button,just clear the cache of Google Play from setting.

Solution 2:

We had the same problem, we think it was a bug of the Play Store, because there were more people reporting the same behavior.

To fix it, we simply re-upload the app with a higher versionCode.