It sounds like you're experiencing some frustrating issues with the Word app on Android. While I can't address specific problems directly, it's worth noting that the level of editing support in Office apps on mobile devices can vary based on the type of user and whether they have an Office 365 subscription. If you're having trouble with basic functions like Copy and Paste, it may be helpful to ensure that your app is updated to the latest version, as updates often include bug fixes and improvements.
If the issues persist, you might consider reaching out to Microsoft support for assistance or checking their forums for similar user experiences and potential solutions.
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