Sanguine Rose sync issue

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No mods, SkyrimTogetherReborn\Data\loadorder.txt content:

# This file was automatically generated by Mod Organizer.
Skyrim.esm
Update.esm
Dawnguard.esm
HearthFires.esm
Dragonborn.esm
_ResourcePack.esl
SkyrimTogether.esp

bEnableModCheck=true has set in STServer.ini to ensure no one have extra mods

Version of Skyrim Together

v1.7.1

Description

https://en.uesp.net/wiki/Skyrim:Sanguine_Rose

Use Sanguine Rose online will summon two Dremora, they will fight between each other until one is died, and the died one be able to loot Daedra Heart

At the same time, summon magic like Conjure Flame Atronach are sync fine, we can summon multiple Flame Atronach

https://en.uesp.net/wiki/Skyrim:Conjure_Flame_Atronach

I don't know how this look in party leader perspective.

Steps to reproduce

1. Start the game.
2. Load a saved game has Sanguine Rose staff
3. Use it in offline, verify it works
4. Connect to the server.
5. Join a team and enter bleak falls barrow after party leader enters.
6. Use Sanguine Rose
7. Summoned Dremora glitchs but after they're gone, other things are fine

Reproduction rate

• Consistent: I can reproduce this bug by following the steps to reproduce 100% of the time (every time)
• Occasional: I can reproduce this bug by following the steps to reproduce around 50% of the time
• Rare: I can reproduce this bug by following the steps to reproduce around 10% or less of the time

Expected result

Summoned Dremora should be like Flame Atronach, not two, not farming Daedra Heart

Evidence (optional)

[absol89]

https://elderscrolls.fandom.com/wiki/Sanguine_Rose_(Skyrim)
Can maybe be reproduced with a staff of the familiar too
https://elderscrolls.fandom.com/wiki/Staff_of_the_Familiar