When you crouch, after the first block destroyed on crouch, (Such as placing a painting) the player stands for a split second and goes back to crouching. After returning to crouching after the brief moment the player stands, the player is unable to use crouch abilities on things such as wooden doors unless they manually crouch again.
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-188505, which is a report that has not been resolved yet.
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