Dashboard on web navigator is a blank page

Hello,

Since last wifi firmware update, my dashbord on my profilux 4 is a white page.
I've try to:
- restart profilux 4
- update again the wifi firmware -> not work
- emergency wifi firmware -> not work
- downgrade PL4 -> not work
- upgrade to 7.12 PL4 -> not work

I m using GCC 1.1.1.2, PL4 FW 7.12, wifi FW 6619
How can I solve my problem?

Thanks for your help

Solve with new power off/on (the 5th!!)

If you also updated to the most recent web interface version, you could fix the blank page by clearing your browser cache.

Thank you for your answer. Browser cache was already clear. Bu tmy problem solve with the last reboot