Component modifier issue after 1.20.5

[kuso5j3bp6m3al1au1]

After the change, the item of the component will have an error in detecting the item and cause the placeholder to not work.
Example:
use /item modify entity @s weapon.mainhand {function: 'minecraft:set_components', components: {'minecraft:max_stack_size': 8}}
After changing the stack, detecting this item placeholder does not work.

[kuso5j3bp6m3al1au1]

I seem to have found the problem. If there is no potion-specific effect in the potion part, it will cause an error. There is no problem.