Mutant Battle Arena crashes in Monster VS Monster mode

Partner Rank:  1

Verification builds: 1.16.100.56

Regression Builds: 1.16.40.03

Summary: Mutant Battle Arena crashes in Monster VS Monster mode
Impact: Mutant Battle arena is one of my most popular maps. crashing during the main game mode makes it bad a purchase and will have angry kids and more angry parents

Repro Steps: 5/5

• Open Mutant Battle Arena
• Press button for "Battle Arena Mode"
• tp to -32 76 -82
• press the buttons to spawn all mobs
• tp to -32 76 -39
• press the buttons to spawn all mobs
• tp to -52 76 -60
• give yourself a button and place it on top of the block at -50 76 -60
• press that button a few times
• teleport to -13 76 -59
• press the button to "Open gates and start the battle"

Observed Results:

The mutants will have an epic battle of grand proportions and the client will crash.

Expected Results:

The epic battle should be watchable from start to end, no crash.

Video Attached:

older video but the resolution is the same

https://www.youtube.com/watch?v=owCQ4Z2fz3o&feature=youtu.be

{{Notes: }}

last reported MCM-799