[SOLVED] Secure boot?

[petexd]

I've checked the posts and can't see my problem exactly (or rather my wife's).
I'm able to install any compatible rom to her Swift but none of them will boot unless I first change the boot.img to foxy or install a foxy zip before booting. It's the only boot img that will work.
Her bootloader screen shows oem unlocked but bootloader "secure" so I assume it's stuck on a specific type of boot img for security.
Does anyone know how to fix this? I have to do the boot change before I can install any lineage otas.

 

[petexd]

I see a few people have read my post so I thought I'd show it solved.
It turned out to be the same problem others have had.
I already had the radio-20161215-crackling.zip file from a year or so back so I tried it and that fixed it. My wife's phone now does a standard update and she can see the same bootloader screen as mine.
She already had the latest twrp img but I re-installed it after flashing thr "radio" files.