Can't Migrate Minecraft Java Edition Mojang account to Microsoft account

When Minecraft stopped working, I used my Microsoft account. And this issue happened after I changed my main alias from E-Mail 2 to E-Mail 1. I can play Minecraft if I log in with my E-Mail 2.

I purchased Minecraft on my Mojang account before the migration, but I don't use my mojang account and that Microsoft account that was migrated to.

With my Mojang account (E-Mail 1) migrated to Microsoft account (E-Mail 4) I bad the Java Edition. With my first Microsoft account (E-Mail 1, now 3) I had Minecraft Bedrock Edition. And with the other MIcrosoft account (E-Mail 2, now 1) I have both Java and Bedrock.

I purchased Minecraft Bedrock Edition on my Microsoft Account (E-Mail 1, now 3) from the Microsoft Store and I purchased Minecraft Bedrock Edition on my Microsoft account (E-Mail 2, now 1) from the Microsoft Store but the Java Edition I purchased from minecraft.net. On my Mojang account (E-Mail 1, now migrated to Microsoft Account with E-Mail 3) I bought Minecraft Java from minecraft.net.

Hello again,

so i spoke with Xbox helper and he told me that my minecraft java edition from Xbox Game Pass doesn't exist after the migration and it can't be recovered,

but how is that possible that account can be deleted without any warning, and can't be recovered because it doesn't make sense in my opinion. Also in FAQ about migration there is no information what will happen when you migrate mojang account to microsoft account that has java edition minecraft.

I do not have a receipt for Minecraft Java Edition on my Microsoft account because I bought it through the Mojang store before the Microsoft/Mojang account integration that happened a few years ago. Thus, my Microsoft account doesn't have a receipt for it because I didn't buy it through Microsoft. I can give my Minecraft username as evidence that I had a copy of Java Edition but besides that I have no other evidence. Now that my Mojang account has been migrated to Microsoft, I can't log in to it to prove I own a copy of Java Edition.

Like SamyQY said,

According to the Minecraft support Migration page: "Once you migrate your account, this action can not be undone." (How to Migrate Your Mojang Account to a Microsoft Account (No Images) – Home (minecraft.net))

Likewise, according to their FAQ "Account transfers are prohibited by our Terms of Service. " (Minecraft: Java Edition Account Migration FAQ – Home)

That’s odd because if this is the Minecraft for Windows it will be purchased through Microsoft Store. The Minecraft that can be purchased through Mojang is Minecraft Java Edition.

Kindly make sure that you’re signed in under the account where the Mojang account was migrated. Please try other Microsoft accounts as well.