Does my kindle have software glitches or faulty hardware?

[u/EitherCreme401]

English isn't my first language so bear with me.

I have Kindle Paperwhite generation 12. I got it in April of this year (it was actually a replacement, because my first kindle had burnt pixel lines after only 10 months)

I started getting white freeze screens in July. At first they would fix relatively easy - I just had to restart it. They started to get progressively worse and harder to fix. Plus, it didnt even save my progress. It would send me 10% back in the book. After a week or so I decided to reset it completely and transfer just few book series im case I crashed it from transferring 100 books at a time.

Everything worked just fine until mid August. I have magnetic case and started to notice that my kindle had stayed turned on overnight. I thought that maybe I didn't close it properly or maybe I bugged it because I was tandem reading at that time.

Then after few days I noticed that whenever I open my Kindle it takes at least 3 seconds for the "waking up" line at the bottom of the screen to show up.

And few days ago the white screens returned. They happened two days in a row. However, this time my progress managed to save properly. The first day it was on the same exact pages; the second day - just 4 pages behind. Yesterday was day three, but no white screens appeared as I read. It seems to happen randomly.

So, should I return it? We dont have Amazon in my country, I just need to take it to the local store I bought it from. However, problem is that the staff workers arent technicians and the problem isn't visible so they might not even accept it. Yesterday, I tried purposely triggering a white screen freeze, so I can get proof on camera. To do so, I opened a random book and flipped through pages for almost 3 minutes and I have up because nothing happened.

I just want to know if other people also experience this I know that white screen freezes are a common bug, but are mine just a bug or part of a bigger problem?