[1.3.5] Nemesis altar invisible to me but visible to teammate (I can fight but get no Nemesis reward)

Game Version: 1.3.5

Character Info:

  • Class: Barbarian
  • Level: 65
  • Faction: Merchant’s Guild

Issue Description:
When playing co-op with my teammate, Nemesis altars are completely invisible to me, but they are visible to my teammate in the same area.

  • My teammate can see and interact with the Nemesis altar.
  • I stand right next to him, but the altar does not exist for me (nothing to click or interact with).
  • When the altar is triggered by my teammate, I can still fight the Nemesis enemies.
  • I only receive the normal map loot, but I do not get any Nemesis-specific rewards.

This problem happens consistently across all maps I run.

Steps to Reproduce:

  1. Enter a map with a teammate.
  2. Teammate finds and interacts with a Nemesis altar.
  3. On my client/character, the altar is completely invisible.
  4. I can fight Nemesis enemies but only get normal drops, not Nemesis rewards.

Expected Result:
Both teammates should be able to see and interact with Nemesis altars, and both should receive Nemesis rewards.

Actual Result:
Nemesis altar is invisible on my character, and I miss out on Nemesis rewards, even though I participate in the fight.

Additional Info:

  • This issue has persisted for a long time and has never resolved itself.
  • Tried restarting the game, verifying files, clearing cache → no effect.
  • Network is stable.
  • Teammate has the same progress and is also in the Merchant’s Guild.
  • Character: Barbarian, Level 65.