As mentioned in MCPE-55786, lingering potions have black particle effects, regardless of potion type. Unlike in MCPE-66626, MCPE-55032, & MCPE-54979, my PC was just barely able to cope with the massive number of particles being rendered; leaving into higher subchunks (Y-axis) alleviated the tremendous lag. Returning before the effect has finished results in the same intense lag.
I noticed that the radius of the lingering potion (a health II potion in the end) was 30 blocks*. This results in 900π blocks being covered by the effect, or 2827 blocks. That's a lot of particles, and yes, the math checks out. This appears to be 10 times the intended radius, which likely means someone coding the lingering effect added an extra zero. This may also resolve the reason for the above-mentioned tickets, excluding MCPE-55786, which appears to have only 2-3 times the intended radius, avoiding a crash.
*As seen in the screenshots, the radius seems to vary from 20–30 blocks, depending on distance. From the player's perspective, they escape the effect's are moving 30 blocks from the center. In the overworld & nether, potions seem to have the normal area (but still black).
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Confirmed on Bedrock mobile 1.13.0 as well
I load a new flat world, fly up (so I can see the near vicinity), and throw 1 lingering potion of Healing II. As soon as the aoe field renders, I can see that the radius is around 10 times larger than intended (I had the wiki page for lingering potions so I could see how big the field is supposed to be). Since I was on mobile, my game crashed afterward. Should probably check dragon fireballs as well because if their aoe fields are bugged as well, that makes the ender dragon impossible to fight, but I can't even access the crashed world now so can someone please check?
Confirmed on Bedrock mobile 1.13.0 as well
I load a new flat world, fly up (so I can see the near vicinity), and throw 1 lingering potion of Healing II. As soon as the aoe field renders, I can see that the radius is around 10 times larger than intended (I had the wiki page for lingering potions so I could see how big the field is supposed to be). Since I was on mobile, my game crashed afterward. Should probably check dragon fireballs as well because if their aoe fields are bugged as well, that makes the ender dragon impossible to fight, but I can't even access the crashed world now so can someone please check?
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Thank you for your report!
However, this issue has been temporarily resolved as Awaiting Response
Is this still an issue in the latest version?
If it is, please be sure to include steps to reproduce the problem:
Steps to Reproduce:
1.
2.
3.Observed Results:
(Briefly describe what happens)Expected Results:
(Briefly describe what should happen)
If your ticket does not look like the example given here, then it's likely to be closed as incomplete.
This ticket will automatically reopen when you reply.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki