Cannot get decryption happening with F5 SWG

Hi;

I have implemented F5 SWG as per this article:

https://techdocs.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm-secure-web-gateway-implementations-11-5-0/4.html

My understanding is that the setup here should cause decryption to take place on the virtual server for ssl forward proxy traffic "the one with a client and server SSL profiles".

Yet this is not working for me. To be specific, I can see traffic hitting the virtual server for ssl forward proxy traffic, but I don't see encryption happening on the server ssl profile. This is confirmed by looking at the certificate issuer,  which is not that associated with the server SSL profile but rather the original one.

Please note that I am not doing any authentication for now.

Kindly

Wasfi