Version: 2.82 Jan. 9th build (Linux 64-bit)
This is a *very* minor bug.
How to reproduce:
# Select Cycles render engine
# Go to View Layer > Passes > Cryptomatte
# Increment the Levels value
It increments the value by two (4, 6, 8, ...). If the user enters an odd number, it will still increment the value by two (3, 5, 7...)
This is weird, right?