In bedrock edition in small puddles and rivers have fast spawn the drowned mob. Becouse of this do not spawn other mobs creeper, zombie, spiders etc
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[media][media]

Thank you for your report!
We're actually already tracking this issue at MCPE-34032, 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.
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