I have submitted a ticket for this but wonder if anyone else has had or still has this issue.
On my old ipad, which is where my lev 68 account is, I can watch adverts for DNA but having played them my DNA is not updated. This has been happening for well over a month.
It clearly is not a privacy issue as I am watching the ads and I regularly have use the “reset advertising identifier” tab to be able to watch the ads.
Watching ads for speed ups does update the timers.
I can’t have been getting too much dna from ads as I have not got any for such a long time and I only try maybe twice a week to see if it works.