Why the effects on this summon doesn't work?

[drowsy bane]

/summon spider ~ ~ ~ {Tags:["changed","changedd"],active_effects:[{id:"minecraft:strength",amplifier:3,duration:-1}]}
For some reason, the spider doesn't have the strength effects ( and other mobs with effects in their /give ) Before i had no problem with this i just notice

[pastel walrus]

<@&1201956957406109788>

Someone will come and help soon!

💬 While you wait, take this time to provide more context and details.

🙇 If nobody has answered you by <t:1744784970:t>, feel free to use the Summon Helpers button to ping our helper team.

✅ Once your question has been resolved (or you no longer need it), please click Resolve Question or run /resolve

[drowsy bane]

i think i know an alternative but i want to know what's wrong

i have tried with a positive duration, with and without the show particles, show icon, ambient

[weak tree]

i believe potion effects which work by applying an attribute modifier are bugged and don't apply correctly when trying to summon an entity with them already applied

[drowsy bane]

what You mean with already applied?

[weak tree]

as in included in the summon command

[drowsy bane]

ooh okay

so basically is a bug

okay thanks You a lot