Upon going through a nether portal the portal warping animation played in a vertical fashion causing my view to bob up and down only seeming to zoom in and out as it went up and down.
Environment
Windows 10
Java: 1.8.0_221 64Bit
Launcher: MultiMC (only for jar management)
Thank you for your report!
We're actually already tracking this issue in MC-161854, 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.
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