I created a 1st level Abberant Mind Sorcerer, and it appears that the Psionic Spells class feature doesn't work. When I completed the character, they learned Mind Sliver from the spell list, but not Arms of Hadar or Dissonant Whispers. My brother made a higher level Psionic Soul, and he said that the character also doesn't get the spells from the feature at first level, but they get all the other ones (such as summon aberration). Can someone fix this bug, or if this isn't a bug, explain why they can't learn part of their own spell list?

I just created a first level Aberrant Mind Sorcerer and did not run into this problem. Could you provide a link to your character sheet so we can take a look at it?

Do you own the books (or the spells themselves) for the spells you don't get? Some of them aren't free and so you won't have them if you don't own them.

Both spells are from the Players Handbook, incase that is relevant for you.

Yes, that is the problem, thank you for letting me know.

Nerver mind - wrong place for the question.

I am also having the same problem. I own everything on dndbeyond, but somehow still not getting those spells for an Aberrant Mind Sorcerer. 

Then you are not having the same problem, as their problem was that they didn't own the content they needed. 

If you could link the character sheet of the problem character that would be helpful, and probably start a new thread for the issue because this one has been marked as Resolved. 

I figured it out. I, mistakenly, thought that those spell would be on the spell list. Once I looked at the character sheet, I see that they're automatically added. I knew I was missing something somewhere. 

Thanks for figuring this out! It was driving me nuts. This is exactly what I was looking for.