Mobs with persistent value are despawning. ~Bug

Mobs that I have tagged with persistent are despawning.

Here's my VanillaMobs.yml: https://pastebin.com/1Ddyp2im

Step 1. Spawn Mob (ex: Cow) Step 2. Relog Step 3. Log in. Mob gone.

These mobs should not remove.

https://paste.denizenscript.com/View/120709 Here is my server log. Please note that I have ALREADY updated to the latest version after I tried to get help in the discord. The issue was not fixed after updating.

Debug log snippet

Provide a link to a Pastebin paste with an excerpt of your latest.log file that includes debug output where you trigger the bugged behavior.

These mobs should not disappear/despawn.