The launcher won't let me add this Mojang account claiming the password/email is wrong, and I emailed myself my password when signing up, copy and pasted the password yet still it says email/password wrong, so I double check the email and it says the email I signed up with. Next update please fix this.
Please, do not create ticket with multiple issues.
Regarding 1st issue, please try to sign-in at minecraft.net and migrate your account to Microsoft account.
Let us know if that helped.
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