I can't silence mobs using tick function

[vapid pumice]

I have these commands in my tick function

execute as @e[tag=!scored,type= cat] run tag @s add scored
execute as @e[name="Averjax___"] run data merge entity @s {Silent:1b}```

3rd command doesn't work the rest is fine so it is not the problem with the tick function
I'm trying to silence mobs with specific name 
when I run the command in game it works perfectly but it doesn't work in the function file

[boreal shoal]

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[soft iris]

Using name target selectors doesn't always work because of how names are formatted and parsed. It's better to give those mobs a tag and then check for that

[vapid pumice]

I tried giving mobs with special names a tag but it didn't work what should I use instead of @e{name=}??

[soft iris]

Right, that wouldn't work because of the same problem. How are they currently getting the custom names?

[soft iris]

If you're adding the custom names, just give them a tag at the same time

[vapid pumice]

I use name tag to name mobs

[soft iris]

Ah, I see. Then you're gonna run into inconsistencies like this. I recommend making a function that can give them the name + a tag