While I'm sure this has been answered somewhere, I personally haven't been able to find an answer to my groups problem. One of the players in the group that I play with is an Aberrant Mind Sorcerer, who for the past few months, has had access to his additional Psionic Spells spell list even without having them purchased (and no at the time we did not content share, we still have no idea how he had them). Well, a few weeks ago his spells disappeared from his sheet. To fix this I decided to buy the master tier subscription to content share with the party since I own TCoE anyway, problem should be fixed right? No. He has access to the subclass and the spells, however the Psionic Spell list only automatically adds the spells that are a part of the Basic Rules such as sending, detect thoughts, etc. I even made an Unassigned sheet with the Aberrant Mind sorcerer and am having the same problem even as the OWNER of the sourcebook. Some help to try and get this fixed would be greatly appreciated.

The subclass may be in Tasha’s Cauldron, but the spells are in the PHB. Not all PHB content is free, only the Basic Rules &SRD content is free. To get the spells, someone in the campaign will have to purchase either the PHB, or at least those spells from it, then your content sharing will share that content automatically.

Thank you so much, I just purchased it and updated the character and it seem to be working now. Sorry about that, I guess I was assuming the spells were in Tasha's cauldron

Checking this thread, because my Aberrant Mind was missing Psionic Spells. The DM def has Tasha shared, but Mind Sliver (Spell that was added in TCoE) doesn't show up... Any worgaround known? TIA

Both you and the DM should follow this link and ensure that your Account Entitlements are in sync: (https://www.dndbeyond.com/account/marketplace)

If that doesn’t do it, have them turn content sharing off and back on again.

If that doesn’t do it then post a link to your character sheet so someone can look into it for you.