Shulkers being wiped after entering pvp

[hotspuraz]

Description of Issue

If you damage yourself and trigger pvp mode in the PvPManager Lite plugin, and then try to open a shulker using CMI's shift + click function, then the shulker will be wiped and all items within lost after combat mode has finished.

Version Information

[08:44:34 INFO]: --------------------------------------------------
[08:44:34 INFO]: CMI: 9.7.2.5 SqLite
[08:44:34 INFO]: CMILib: 1.4.7.6 -> 1.4.7.7
[08:44:34 INFO]: Server: Paper(46) 1.20.4-R0.1-SNAPSHOT-
[08:44:34 INFO]: CMI economy: Enabled Vault: 1.7.3-b131(CMIEInjector) CMI Chat: Enabled 
[08:44:34 INFO]: Modules -> 40 enabled 19 disabled: spawnerProximity, hpBossBar, tablist, armorstand, moneyCheque, portals, holograms, elytraBoost, spawners, dynamicSigns, rideAnimation, elytraLaunch, bossBarCompass, flightCharge, ranks, votifier, sitAnimation, spawnerCharge, vanish
[08:44:34 INFO]: --------------------------------------------------

Errors

None

Relevant Config Sections

No response

Relevant Plugins

PvPManager Lite 3.18.1

Agreements

• My server is supported by CMI.
• My version of CMI at the time of this report is up to date.
• I have searched the github and asked around before making this report.

[ChanceSD]

PvPManager dev here, only thing I can think of that interacts with inventories in PvPManager is blocking the opening of inventories while in combat.
Try setting block open inventory to false in PvPManager's config if it isn't already.

Although blocking the opening of an inventory shouldn't cause a shulker to be wiped, so that part is likely a CMI issue.