Hello, i run a semi marathon last sunday in 1:33'00, my FR255 said after the race this prediction, how it's possible ?

hello,
there seems to be a bug with the prediction of times. for example on 10k, the estimate suddenly went up as I continue to train normally.
same pb on 5k, semi and marathon.
I did a 10k in 41:53 on Sunday, it didn't change anything.
and during this time, my vo2max continues to increase, it does not make sense.

why suddenly increase 3 weeks ago..
He-he. The Answer knows nobody but you :) Maybe you started training harder, who knows.. It looks extremely precise to me.
My predictions are very wrong. My current 5K prediction is 33+ minutes. My personal best is sub 20, and I can definitely do sub 25.
I have a theory of what could cause it in my case. When I run, particularly indoors, I typically include the warm up and stretching in the running activity. That could add something like 30 minutes of non-running, which affects the average speed significantly. Maybe that is a factor when the prediction is calculated?