Retirement tax questions

I received 1099-R with box 7 distribution code of 1B as well with taxable amount of $0.  Google search (link below) states Code 1 is for early distribution, but I have not withdrawal any funds. Yes, I had canceled my Long Term Care account as well.  Why would that generate 1099 1B form ?

 

https://thelink.ascensus.com/articles/2020/12/16/irs-form-1099-r-box-7-distribution-codes