1.15.2-1.12.9

If a player with an active impulsion wand dies. The effect of the impulsion wand stays within the client.
Confirmed that it's not affecting other players.

Has that been addressed in a newer update? In 1.15.2

I'd recommend checking to see if 1.15.2-1.12.12 fixes it.

After a player's death, the server does not send entity updates to that client. So, i'll adjust it so it doesn't pull the dead clientplayer, but removing & updating is the server's responsiblity.
As can be seen on the screenshot, the entities are not alive anymore on serverside, however their death/updates are not synced. As far as that goes, it's a vanilla behavior.

That being said, it doesn't pull a clientplayer. Just still exists. So i'm not sure what exactly is being referenced as issue here.

I have recorded a video showing the bug. https://www.youtube.com/watch?v=z8sdyY62MGg
We're going to update the server and see if the issue is prevalent tomrorow.

Ah i see.
Yep this is broken on the mod's side and i'll fix that with the next update.

Thank you for the report and your patience.

1.16.4: Fixed with version 1.13.3

1.15.2: Fixed with version 1.12.14