As the title says, lily pads are unable to be found in swamps biomes naturally.
Xiaomi Mi Note (Android 5.1.1 via custom ROM)
Samsung Galaxy Tab 3
Asus Zenfone 5 Android 5.0
Samsung Galaxy Core Prime
Attachments
Comments 7
Confirmed
Device
Samsung Galaxy Note3
Android 5.0
MCPE 0.13.0
Edit:
Confirmed on my Tablet
Samsung Galaxy Tab 3
Android 4.4.2
MCPE 0.13.0
Confirmed on Samsung Galaxy S4 Active Android 5.0.1 MCPE 0.13 build 5. I even tried on hardest difficulty just in case Lily pads had gone hostile on us. They do appear in terrain that was generated prior in 0.12.3. Can't say when they stopped generating, sorry. It also does not appear that the lily pads are being rendered incorrectly - I ran through a bunch of swamp where I knew there should be lily pads, and I did not walk over any "invisible" lily pads.