@rvyne If that was a "when the prepubs will be taken down?" question you should check this thread, they are expired 1–2 months after ebook publishing.
Ebook release dates can also vary a lot (but like Terabyte said, most of time the target seems to be about 2 weeks after prepub finishes). You can get a list here, by searching amazon or by filtering through releases page on the site.

Yeah, Sam is aware of the issue. Someone at Amazon screwed up something.

I am logged in now, working normally

Actually, part of the reason I did this here is because that way, when I got it fixed, I'd be able to post up in case anybody else had the problem.

I did get it fixed, and it's a software bug to the reader app on android products like my tablet (not a nook item)

The fix is easy, though. Go into your library, archive the book so that it comes off of your reader, and then go into the archive and move it back over to your library. This forces a recheck and redownload. When I tried to delete and redownload, I got the preview again (not sure why), which is why I was fairly miffed and checking with J-novel to see if there was something on their end.

@pleco_breeder
You don't lose the account, your books or credits earned.
Your account gets downgraded to free user status which locks out the members only forum sections, including the discussions about the current pre-pub books.
It also hides the "Purchase Credits" button in the 'My Account' part of the site, due to this being a Membership perk.
'My Library' should still be accessable, since those are books that you have paid for. At least it has always been for me if I took a break from membership.
When you go into the 'Titles' page and click on a completed volume, aka one for sale, the gold button on the bottom of the list changes from 'Premium' (letting you buy with credits) to 'Go Premium' taking you to join.

If you have 3 Credits available for your account and wanted to use those credits without taking your account to Member or Premium level again, someone would either need to give you a direct link to the purchase page, where you could spend your credit, or you could send an email to support, where someone would help you make your purchase.

Hope thats helpful.

Simplest way is to cancel your premium membership, then when it expires, subscribe again as a regular member.

If you're trying to get an exception to end a yearly premium early, you should try emailing support at j-novel.club

@rahul-balaggan thanks will do

As per https://j-novel.club/faq being a member gives you access to pre-production releases but only until the novel has been published (at which point you need to buy the novel). I have premium membership to get premium credits to buy the e-books at discounted rates, and for Grimgar these premium ebooks tend to include bonus short stories as noted by @Raitoiro

If you are reading a preview or pre-production chapter and it is taking forever to load then you may need to change your settings to enter 'simple' mode due to a bug in how the app loads graphics on some devices.

@guspaz This. The same thing happens on the Android app too, force stop and restart does the job.

The app doesn't support sign on with Google, you need to set a password on your account

@elfin-woodchuck it was made available for download a bit to early, typically premium ebook needs some extra time (up to 24 hours extra) to be released compared to normal ebooks, since Grimgar just released today the premium edition should be available by tomorrow.

You can still redeem the credits via direct links. (I include them in all the J-NC discussions I post on /r/LightNovels) _08 showed the base link above.

https://j-novel.club/mypage/redeemCredit?title=

This is the base link. After the equals, you add the volume url to it to get the premium credit redemption link. For example:

Take out:

arifureta-from-commonplace-to-world-s-strongest-volume-8

From https://j-novel.club/v/arifureta-from-commonplace-to-world-s-strongest-volume-8

and add it into the previously mentioned base link to get the Premium Credit Redemption page for Arifureta Volume 8.

https://j-novel.club/mypage/redeemCredit?title=arifureta-from-commonplace-to-world-s-strongest-volume-8

I forgot to mention that I'm on app version 2.0.5

Pretty sure you should be reaching out to Kobo

@steelstrannik they're on to you! Run!!

@rahul-balaggan
Thank you ^^

@JeremyTMH beat me to it. But yeah, that is indeed not an error.

@motionless47 oh that must suck so bad. Rip. It still took me a solid 30 seconds, although my room in the house has the worst reception cause its downstairs. Always at one bar of reception out of 5