Would appreciate some help 💕 BBT and OPK

I ovulated last month - confirmed by OPKs and bbt.

This month, I started using my OPKs at CD9...then got a positive opk on CD13&14 and my bbt started showing I ovulated CD15. My temps continued going up. But the app I use (FF - fertility friend) all of sudden took away my ovulation date. It said they could no longer see an ovulation pattern? Which I don’t get because my temps are still high (I should be 6dpo today). So I emailed the FF support team to ask why it happened. They responded with my chart just doesn’t show ovulation. I’m so confused right now. I really think I ovulated CD15....

Would you mind taking a look?

Here’s yesterday’s graph (where FF showed ovulation was detected):

Now here’s today - my temp went up too, not down. So I don’t know what changed?