2027 AARP Medicare Advantage from UHC WA-12?

I live in Clark County WA and have had AARP Medicare Advantage from UHC WA-12 for 2 years.  Still haven’t received my ANOC for 2027.  When I try to access online, I’m told to check back after 10/7/26.  When I search for a plan under my zip code for 2027, mine doesn’t exist.  Is this treated as a cancelation where I am now free to go to a Medicare G/N/G High Deductible without underwriting?