Steps to reproduce the issue

Set up a note block connected to a timer that activates only once every ~15-30 seconds (I used the boat clock pictured in clock.png).
Bring an allay close to the note block and let it lock onto it.

Expected result

While locked onto the note block, and not picking up items, the allay should stay within range for the entire 30-second period, waiting for the next activation.

Actual result

While locked onto the note block, the allay may wander out of range just as the note block activates again (as shown around the 40-second mark in allay.mp4). This causes it to lose interest in the note block. After that, the allay may wander away and get lost, or return to the player unexpectedly.

Environment

Minecraft 1.21.8 (1.21.8/vanilla)
Windows 11
Java 21.0.7