[MCPE-49303] Slimes not spawning in slime chunks or swamps

Note

If you are still experiencing this issue in version 1.16 or later, please comment below and indicate if the problem is with slime spawning in a swamp or in a slime chunk, and give the coordinates and world seed.

When in a swamp or a slime chunk, I observe a slime and create a simple farm with appropriate lighting, Y-coordinate, and conditions according to the Minecraft.Wiki website. I have built these farms (iron golem + cactus) before, prior to this update without problems. However, slimes cease spawning in either the chunk or the swamp after I start digging out the area. In the case of the swamp, I have several AFK spots to just observe what happens in the swamp - no farms or lighting. Slimes do not spawn. I have observed from varying Y-coordinates as well but there does not seem to be any distance from the player at which a slimes will spawn.

My husband and I both experience this issue on our separate platforms and devices. We play on Realms but this issue persists if I create a Realm download (both on normal and hard difficulties). My husband plays on Windows 10 PC, Minecraft v. 1.14.4 and I play on iPad, Minecraft v. 1.12.0.

We have tested and observed this issue for one week and we play for about 4-5 hours every day after work...In my case, this amounts to at least 20 hours of testing and observing various environments, Y-coordinates, farms and lack of farms, locations, etc. I should stress that this issue persists even when there is no golem or lighting and the only factor I can control which would affect slime generation is the distance between myself and the slimes.

*This may be a duplicate of ~~MCPE-48950~~ which contains two bugs in one ticket.