Power too low and mixing out under 300

I’m using a Tacx Vortex trainer, paired through bluetooth via an AppleTV. Beginning last week, my power numbers have been much lower and even in full sprint I cant break 300 watts. My normal range is 3.0-3.5 watts per kilo and now I struggle to get to 2.8.

Calibrated the trainer, and if I use the Tacx training app, my numbers are accurate.

No changes to my set up, bike or network. Any thoughts?