Zombie Pig should spawn in the nether portals , but when it happens they disappear instantly. This did not happen until the 0.12.1 Build 7.
I tested the Windows 10 edition and Android 5.0 and both occur this error.
Update by @unknown
This bug has been reported to our internal bug tracker for further testing and a fix. It is scheduled to be fixed in one of the future updates (no specific date can be provided).
Please avoid duplicate comments. Post only NEW information regarding this bug.
Linked issues
is duplicated by 12
MCPE-10969
Nether Portals don't spawn Zombie Pigmen
Resolved
MCPE-11428
Zombiepigmans can't spawn in portals of overworld
Resolved
MCPE-13510
The zombie man pig does not pass through the portal.
Resolved
MCPE-14185
Zombie Pigman does not spawn from the Nether Portal
Resolved
MCPE-15456
Zombie pigmen wont spawn in overworld
Resolved
relates to 1
Attachments
Comments 25
Yes, affects 0.13.1 and 0.14.0 build 1 too. I think you should ask the developers if it should work in MCPE. It may be that this has not been implemented yet.
They do spawn in the nether portals but can't escape to the overworld because they as teleported as soon as they spawn as mentioned in issue mcpe-14032
This is reproducible in the Windows 10 edition 1.0.4 and 1.0.5. I tried two worlds (both based on the same seed). I tried both a 20x20 portal, and rectangle of 4 8x20 portals.
pigmen won't spawn in overworld portal effecting both windows 10 and mcpe version 1.2.0.31
issue is unresolved as of Sept 8 2017
Not sure why this is marked as resolved as I have just tested on xbox one version of bedrock v1.2.3 and the issue is still present. The pigmen spawn and immediately despawn.
I concur with this issue. Seen in 0.12 update from play store running Android KitKat.
I created 5 portals 18x16 blocks to lure pigmen to the overworld. None appeared in the overworld, but my nether world portal (regular 5x7 portal) is now swamped by pigmen!