One time, when I was playing Minecraft, I exited the Nether and everything I left-clicked on turned to nether-type blocks. I entered the Nether portal again and everything reverted back to normal. I had no mods on whatsoever.
MC-175268
Blocks Turn To Nether Blocks When Left-Clicking After Exiting Nether
Resolved
Duplicate
0
Thank you for your report!
We're actually already tracking this issue in MC-175177, so I resolved and linked 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 in the future to see if the issue has already been reported.
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