All effect animations on the player are lost when going through a portal:
a burning player still burns, but shows no flames
an invisible player seems to be visible again (but not for other players and mobs)
potion effect animations won't show up
When something is eaten, the effect animations will show again
Linked issues
is duplicated by 6
relates to 1
Comments 15
The potion effect still exists but your character is still visable. Once you eat/drink the invisablity comes back. Other potions are not affected.
Ok then it's different. In previous versions when going through portals would completely removed the effect
Also Confirmed.
EDIT- Animals/Mobs affected by this potion become visible when going through a portal.
Confirmed. As commented, the effect remains as mobs will ignore you, this is purely a rendering issue.
That bug affects to every single potion effect, I went with strength, resistance, fire resistance and water breathing, and they were gone.

MC-6431 reopened.
Still present in snapshot 13w42a.

Is this still a concern in the latest Minecraft version 14w04b? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

The particles seem to appear in 14w21b,
probably already fixed 😉
Did you try this with other potions?
That was a known bug before.