summon command from event in block json doesn't summon entity when provided rotation arguments

Hey,

I have the following event in my custom block's behavior json file. It's expected to summon the 'chair_seat' entity at the block's position. The command works fine and summons the chair_seat. 

 
"furniture:summon_north_facing_seat":{
                "run_command":

{                     "command": "summon furniture:chair_seat"                 }

            },
 
I wish to rotate the chair seat when it's summoned. So, i added a rotation argument to the summon command and thereafter the command ceased to work. 
 
"furniture:summon_north_facing_seat":{
                "run_command":

{                     "command": "summon furniture:chair_seat ~~~ 0"                 }

   
},
I have all experimental features turned on in my world and i'm using 1.19.81 version of bedrock edition. The summon command (/summon furniture:chair_seat ~~~ 0) works fine in game when i use it as a command. But the block's behavior doesn't summon the rotated entity. It simply fails to summon the entity at all.