no problem within product pages from the dashboard
cleared my cache on my browser (firefox, I tried clear cache/ recharge page (also with shift), and trick on inspector Disable Cache (when toolbox is open))
I'm almost sure this is not directly related to filament rather from cache contents or something I'm missing (noob talking here;) because it behaves exactly the same on chromium (I launched chromium "after" the port change so a priori not related to browser cache but the app)