nothing else, it is as it should, Amethyst is probably not looking for e tags because almost always the reference is an a or r tag

nostr:npub1w0rthyjyp2f5gful0gm2500pwyxfrx93a85289xdz0sd6hyef33sh2cu4x  renders the reference just fine

https://blossom.primal.net/912c5ac04b755139c249be7e9456ac3b1ab0a594b624c77b49dcc4db21778ad6.png