RPi4B aegis256 support

[jaminous]

I saw an issue saying that rpi4 should support aegis256 as long as it's using 64 bit OS.
Using Ubuntu 20.04 LTS 64bit i'm building project from source. On make check step, aegis128 and aegis256 fails - "Illegal instruction".
That doesn't stop crypto_aead_aegis256_is_available() function from saying that it is available.

When launching my project that uses aegis256 encryption, as soon as it gets to encrypting part, program exits with "Illegal instruction" error.

Does this mean RPi4 doesn't support aegis at all? Or something can be done to the way i ./configure the library?