Fire doesn't spread, consume flammable blocks nor disappear with rain as for the newest beta. This bug may have remained unnoticed since it's most easily seen in the Overworld with thunderstorms and, as we all know, this beta is mostly (if not totally) centered around the Nether Update.
Linked issues
duplicates 1
is duplicated by 1
Comments 2
Thank you for your report!
We're actually already tracking this issue at MCPE-69072 and MCPE-69075, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main tickets it would be appreciated.
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Has fire tick been turned off on your world?
Ionic