F5 ASM - Stagged blocking settings is not send to remote log

Maybe check the link below as the logging profile may include the option to send even staged attack signature matches:

https://community.f5.com/t5/technical-forum/logging-and-identify-the-violations-from-staged-signatures/td-p/134252

The option in the F5 Advanced WAF logging profile is "Illegal requests, and requests that include staged attack signatures".

https://techdocs.f5.com/kb/en-us/products/big-ip_asm/manuals/product/asm-implementations-13-1-0/14.html