Map not generating items or currency

Problem
After running many maps in the following configuration, this map does not seem to generate ground loot from Harbinger packs (no currency shards), Exarch packs (no ground loot), Breach encounter (Varshun) (no breach ring).

Some ground loot is being generated: Crates/Chests seem to generate loot, as well as the very first monster pack prior to entering Wisp cave.

This is not a complaint related to community sentiment surrounding ground loot in general. This seems like an actual bug.

Context:
- City Square: 8 mod Corrupt
- 179% Quant
- 102% Rarity
- 60% Pack Size
- Map Device: Harbingers
- Scarabs
- Harbinger x 2
- Harbinger Regency x 1
- Harbinger Warhoards x 1
- Harbinger Obelisks x 1
- Influence: Exarch
- Altar Mods:
- 2.7% chance to drop an additional Greater Eldritch Ember
- 2.8% chance to drop an additional Lesser Edlritch Ember
- 2.5% chance to drop an additional Essence Scarab
- Wisps:
- Wild: 418
- Primal: 5,142

Observed Behavior:
After spawning in, I used Corrupting Fever and Bladefall of Trarthus. I then ran to the wisp cave. As I approached the cave, I killed a pack of exarch monsters, spawning an altar. The altar seemed to spawn almost exactly at the same time as entering the wisp cave.

I ran the wisp cave, where I observed some loot dropping (unique helm, some currency, 1 map).

After returning from the cave to the map, I engaged with multiple packs including the map bosses and harbinger packs (with Harbinger Boss and enhanced Obelisks). No loot seemed to drop from these monsters.

The map contained a Starfall Crater. After killing the Black Knight, he dropped what seemed to be appropriate loot (3 magic, 5 rare items).

What I expected:
- After killing the Harbinger packs, several stacks of currency shards should be available for me to pick up.
- After killing completed the Breach encounter (Varshun, in this map), some items or currency would be available for me to pick up.
- After killing packs of Exarch monsters, some loot would be available for me to pick up.

This was the observed behavior for dozens of maps prior to this map.

What actually happened:
- After killing the Harbinger packs, no inventory loot was available for pickup.
- After completing the Breach encounter, no inventory loot was available. However, there seemed to be gold available.
- After killing several packs of Exarch influenced monsters, no loot was available.

Attempts to solve the problem:
- Used the Z to Toggle Highlighting
- Used the Alt key to Highlight items and objects
- Changed Loot Filter to Default
- Changed Loot Filter back to known working filter (worked 2 hours ago during previous session).
- Updated Loot Filter from filter blade.

None of these exposed any ground loot from the Harbinger packs, Exarch Packs, or Breach encounter.

Omg, you're absolutely right. I missed it in the buff list (so many golem buffs).

Thank you! Lesson learned, haha