Premiere Pro 2025 doesn't keep the audio optimization?

Hi, on the latest version of PP/ME, when I add "optimize the speech" on PP, it works pretty good, BUT, it's not possible to export the audio file while keeping this optimization. Worst, some part are optimized and most of the others are not. The problem is the same if I use ME to export, or if the export is direct from PP. Also, something new, when we export a file via ME, it's not possible anymore to use PP without stopping ME? Is this normal ? any idea please? And ME is reaaaaaaaaaally slow. Much more than before. And it was not a thunderbolt.

PP/ME 25

Mac Studio M2/96Go

I thank you. Best.