Cop zombie has invincibility frames while spitting acid

Summary: During specific part of cop zombie acid spit animation, projectiles will go right through a cop zombie

Game Version: A21 b317
OS/Version: Windows 11
CPU Model: Intel Core i5-12500 3 GHz 6-Core Processor
System Memory: 32GB
GPU Model and VRAM: Radeon RX 6700 XT 12 GB
Screen Resolution: 1920x1080
Video Settings: Custom: https://imgur.com/a/hfHG9je
Game mode: SP

Did you wipe old saves? Wiped 6/12 on A21 b313
Did you start a new game? Wiped 6/12 on A21 b313
Did you validate your files? Validated files 6/12 on A21 b313
Are you using any mods? No
EAC on or off? On

Status: NEW

Bug Description:

Detailed steps to reproduce the bug:
1) Equip a crossbow with explosive arrows and 2x scope (easier to track weapon and see what's going on)
2) Spawn or locate a cop zombie
3) Some time after cop zombie does their spit animation, fire exploding crossbow bolt

NOTE: I am not good at explaining the exact timing so please look at the video examples below

Actual result: Arrow goes through zombie and explodes behind him

The following are 5 different examples of this happening. I include a slow-mo half speed version after full speed version plays

Example 1: https://i.imgur.com/2EUlhTM.mp4

Example 2: https://i.imgur.com/TZKcSdO.mp4

Example 3: https://i.imgur.com/5elVvXm.mp4

Example 4: https://i.imgur.com/8A4YgZp.mp4

Example 5: https://i.imgur.com/y4WoT9o.mp4

Expected result: Arrow should hit zombie

Log files: https://pastebin.com/sDdRvRUk

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