Inherited IRA 2020 -did I miss rmd

My parent died in late 2020. I inherited an IRA I either inherited it in late December 2020 or early 2021. I was under the impression that it was that point subject to the 10 year rule, but I was not subject to RMD’s based on, my life expectancy or anything else. They had already begun taking RMD’s did I miss taking required minimum distributions? 

Thanks in advance