One not uncommon situation: your employer "rents you out" to another business. The other business issues a 1099 to you, even though the payment went to your employer. You may need to ask your employer about what's going on.
Another situation: you were not paid money, but services or goods. The 1099 represents the value of those good or services.
Another situation: you did the work in 2022 and the issuer hasn't paid you yet, but wants to get the deduction for his business in 2022.
