After migrating my Minecraft Mojang account to a Microsoft account it says I don't own the game

Thank you Sam but that is what I am doing... I'm attaching my already existing Microsoft accounts to Minecraft and both of the accounts are telling me that they do not have the game. After I migrated my Mojang account to the Microsoft account using the same email. After I Migrated my Mojang account I followed the instructions to press the "< go back" prompt and I did then sign in using the Microsoft account not the Mojang one which I did and I successfully signed on but I can't do anything because the account is telling me that I don't own the game. I however did Migrate and even got the confirmation email on that email as well.

Something of note is that when I signed in on my Microsoft accounts I am being prompted to change accounts to my Mojang account to play the full game when I've already migrated and cannot access the account because it is supposed to be combined with the account signed in with.

Yes, the migration completed successfully. It showed me the confirmation message and everything. My skin is even transported to the Microsoft account, and I can log in with it both in Mojang site (It no longer lets me log in with the Mojang account, only with Microsoft account), and the launcher. But it says I don't own Minecraft java Edition, and only lets me play demo.

hey , I migrate my Mojang to my Microsoft account . it say log in my Microsoft I try login in to my account in Minecraft account threw the game

Hello again, I don't know what kind of email you used to open your Minecraft account, if you used an email with a Microsoft domain you can try to retrieve it using the form, however if it wasn't, I believe that Mojang support informed you correctly and it will not be possible to recover your account.

What happened was they had a minecraft account with Mojang (it had NOT been migrated to a Microsoft account yet) and someone got into his Mojang account and then proceeded to migrate his minecraft account to their own Microsoft account (not one the OP owns)

I contacted Mojang Support again.

They now tell me that my Mojang Account has not migrated to the Microsoft Account with the same email address, but to some other Microsoft Account.

My Family has 3 other Microsoft Accounts. So I presume it is possibly one of those.

All those Accounts have Minecraft licenses of their own. So possibly I have a Microsoft Account with a double license to Minecraft.

I asked Mojang Support to what account my Mojang Account has migrated. I have yet to receive an answer.