Steps to reproduce using test world:
Read all the signs carefully,
Sprint in a straight line until you get to the diamond block. Your character will get blindness but continue sprinting. Make sure to look at your paper doll in the top-left corner of your screen.
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Can confirm. Now a parity issue with Java as of Bedrock Preview 1.21.50.26.
[media]Steps to Reproduce using test world:
Read all the signs carefully,
Sprint in a straight line until you get to the diamond block. Your character will get blindness but continue sprinting. Make sure to look at your paper doll in the top-left corner of your screen.