Some days ago I did a full backup with TWRP and I decided to restore it. Now everything is perfect again. But I don't know what could be the cause of loosing integrity.
I want to inform who is interested that I updated my Redwood without any problems with the latest version of HyperOsEU (1.0.6.0) just released. Everything works well, I only noticed that security has been updated to 1st April 2024.
No, even in this case you don't need PIF, it's enough to have euinject.apk
With unblocked bootloader you can't pass "strong integrity pass" but we don't need it (till now)