As you can see in the attachment, rain droplets can be seen though glass texture.
I conclude that it is a visual bug.
Here's the link for the attachment:
https://drive.google.com/file/d/1lCoheMY7yJ4bvc3KSaz8c931F-qtFJBQ/view?usp=drivesdk
https://drive.google.com/file/d/1lFVTbmRw46iS80Zyo9Bbi9Fs81XU8TJa/view?usp=drivesdk
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[Mod] EVGENSYPERPRO
migrated
Thank you for your report!
We're tracking this issue in MCPE-127128, so this ticket is being resolved and linked 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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