problems with my paperwhite

[mytrivo]

​
​I have a ​Kindle ​Paperwhite ​Signature ​Edition -11th generation. I'm experiencing a couple of aggravating behaviors that are forcing me to restart my kindle appropriately every other day.
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​Problem 1) ​If I try to download a book that's already in my library using the download option on the ereader, the process queues but never completes. The book will stay grayed out until I restart the ​k​indle. If it's a new purchase​ (I usually buy through the Amazon website, not the ereader), it automatically downloads fine. Also, if I go to Amazon's Manage Your Content web page and send it to my paperwhite from there, it has no problem​ other than a slight sync delay, which I'm assuming is caused by waiting for my wifi to connect with their servers.

​Problem 2) I highlight quite a bit while I'm reading. If the kindle hasn't been restarted for a few days, the highlight feature stops functioning. The option won't appear when I press and hold to highlight the word or passage. The feature selection box doesn't appear at all. A restart reactivates it again.

Before I try troubleshooting by resetting or deregistering it, I​'d like to see if anyone knows if these are known issues or if they're unique to my device.

[tomsem]

Check to see if indexing is stuck: from Home/Library, search for '.' (period) and look at Text in Books in search results. If it is enabled it will tell you what it is trying to index, delete that thing and re-download.

Also maybe the My Clippings file is getting too big. You could try deleting it to see if things improve.

[mytrivo]

Thank you tomsem for the suggestions. I tried those and a few others that I found online, nothing worked. So I bit the bullet and did a factory reset. That fixed it.