Alt locks sneak

Steps to Reproduce:

1. Bind Sneak to the Alt key
2. Open a world
3. Hold the Alt key and another key
4. Let go of both keys

Observed Results:
The player is locked into sneaking until the Alt key is pressed again.

Expected Results:
The player should not be locked into sneaking.

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Original Description:
When I switch the sneak keybind to alt and switch sprint (alt) to shift, after 4-10 seconds of holding sneak with alt it randomly locks sneak. I can disable the lock by pressing alt again but it locks at random intervals which makes it hard to know when to unlock it. It doesn't help when I want to charge a skeleton but I'm still in sneak when I lift my finger off alt, or if I'm strip mining and I want to mine an ore vein that goes down but I get stuck at the edge of a block until I press alt again. This problem doesn't occur with the default sprint and sneak keybinds. I switched from Java edition to Windows 10 edition for better performance but Java never had this issue.