I have two characters in my friend's campaign, a backup and my main character. Content is shared, they've checked repeatedly, and some players have no issues in accessing the content(Like Tasha's, for example) and some players are having similar issues to me where they just couldn't see certain things, like race. I have had.. so.. so many issues with DnDBeyond's character sheets. It's been going on for a while, for a few months, since the campaign was started, the issues have just gotten worse last night. The subclass and feat issues happened BEFORE maintenance, the spell issues were AFTER. I'm not sure if they were bugged beforehand or not, maintenance started before I was able to get to the spell list to redo it. 

I realized some features were missing from Bard of Eloquence were missing in the '24 ruleset(I had selected it by mistake, didn't notice until last night that it just.. didn't have Song of Rest), so with the DM's permission, I removed the Bard part of my class(Bardlock) to go back and reselect everything and swap to the '14 version of Bard. The only subclass I could select was the College of Lore. My DM had to manually select Eloquence. I was able to select this initially when I made the sheet. Couldn't scroll, because there was nothing else there. 

I went to reselect my feat, and aside from a small handful of feats, mostly coming from Magic Initiate, I had next to nothing. My DM had to, again, manually select the feat I wanted for me. I was able to select this initially when I made the sheet. Couldn't scroll, because there was nothing else there. 

Dissonant Whispers '14 is just.. missing. I did have the new '24 version selected, I don't remember if it was there when I made the sheet the first time. This is for the Bard. 

The '14 version of Hex is also just not appearing. And I did have the '14 version initially. 

And Silvery Barbs is just.. gone, outright. I took screenshots of my spell list right before I did the swap(I had to remove Warlock and readd it as well, since Bard was the starting class). 

And here's my original spell list, not counting cantrips, those, shockingly, were without issues. 

Yes, everything is enabled for the Core things and CR things(Kobold Press and the like are not enabled). I don't personally own the books, the DM does, and does have it both enabled and checked for the characters. Other players can access things fine, some of us can't. 

The DM enabled content sharing, and they double checked it was indeed enabled last night. This is also PHB, FREE, base things that are having the most issues. They can access their bought content just fine, and they did just check it as I'm typing this and it's still active. 

Hi! I’m the DM for the game. Master tier is good till March 28th, 2025. I’m able to add things on my end just fine, and it seems those using strictly mobile are able to get to everything just fine (I mostly use mobile unless adding homebrew). I’ve gone through everyone’s sheets to make sure everyone has the same settings for content sharing and rules enabled.

Dissonant Whispers and Hex are both in the Player's Handbook for 2014. I had the spells on my character sheet before I made the class swap, that is included in my spell list in the bottom clump of screenshots. 

I do have the 2014 players handbook, so it shouldn’t be an issue?

Update: Our DM here clicked "restore purchases", and it did nothing. I've also made a ticket. I made an alt account to see if it was an issue with my account and joined the campaign, everything except other material, except Critical Role's, is enabled. I still am not able to select any other bard subclass, feats, and spells are still missing. Someone else is doing the same  test, and they're experiencing the same issues. 

Seconding the entitlements check. Your DM may have checked theirs, but YOU need to check it on your account, because Entitlements syncing includes inbound content sharing access.