1) Suspicious Stew crashes the game when eaten in survival mode.
2) Suspicious Stews milked from Mooshrooms do not give the correct duration of an effect (Eg. Suspicious Stew made from Cornflower only gives 5 seconds of Jump Boost instead of 6)
3) Suspicious Stew does not have an NBT tag that stores information about what status effects it gives the player.
Linked issues
Comments 2
Also, it would be most helpful if you could keep these reports to one bug per ticket though, so we can track the progress of each of them individually.
(You can find an example bug ticket here.)
Also, we'd recommend making use of the search feature before writing a new bug report, as it's very likely that the issue has been mentioned already, and you can add a vote and any new information to the main ticket.
Quick Links:
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Thank you for your report!
We're actually already tracking this issue at MCPE-51978, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature, to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki