How to report investment loss if no 1099-B is issued?

I have some investments on notes issued by an online platform. The platform filed bankruptcy in June 2023. As an investor, I didn't get any 1099-B for 2023.

I tried to find a way to enter this long term loss in TT without a 1099-B, since I was able to do so last year. But in TT 2023, I didn't see this question -- "Did you get a 1099-B or a brokerage statement for these sales?", which allows me to enter loss w/o 1099-B. Can anyone help? Thanks!