Invisible & Invulnerable Mobs in Breach Encounters - Impossible to Clear Maps or Loot (3.28 Mirage)

Hello GGG,
I am reporting a critical bug that has been affecting map completion and looting since the launch of the 3.28 Mirage league.

Bug Description:
In multiple maps containing Breaches (especially Unstable Breaches), several monsters spawn or become completely invisible and invulnerable. These mobs remain hostile, continue to attack the player (sometimes dealing heavy damage that seems to ignore defenses), but cannot be targeted, damaged, or killed. As a result, it becomes impossible to fully clear the map or collect loot safely.

This matches reports from many other players, including:

>> Reddit thread (exact same issue): https://www.reddit.com/r/pathofexile/comments/1rsx13u/invisible_and_invulnerable_mobs_bug/

>>Existing forum thread: https://www.pathofexile.com/forum/view-thread/3919784 (with screenshots showing the monsters chasing the player with no HP bar interaction)

Reproduction Steps:

1. Run any Tier 16 map with Breach enabled (or encounter Unstable Breaches in the map).
2. Open/activate the Breach.
3. Monsters (particularly Breach-specific ones like “It That Crawls”, magic or rare variants) appear invisible/invulnerable.
4. They follow the player across the map, attack, but cannot be hit or killed.

Frequency: Happens in a good chunk of Breach maps (multiple players report “almost every map”).

League: 3.28 Mirage (started 06 March 2026).

Severity: Makes Breach content unplayable/frustrating and prevents proper looting and map completion.

I can provide additional screenshots or a short video if needed.
Please investigate and fix this issue as soon as possible. Breach is a core mechanic and this bug heavily impacts player enjoyment in the current league.
Thank you for your time and for the amazing game!

Also running into this a ton this league.

same problem on std

Same issue, worst part it's when you try to fight Esh and Tul, if you go full damage with cold skills somehow you break the game and made them Invulnerable.

Same issues here, It's gotten so bad (about 1/10 maps and the yare maps that cost 4 divs to open) that I am about to quit the league. Beyond frustrating that you have a full map of loot after completing all your breaches and then you lose all of your xp and loot to bug, GGG please fix ASAP.

Getting this a ton. Their damage is hugely amped once they're invisible/invulnerable, too, I go from unkillable to taking huge chunks of HP from these mobs.

also experiencing this. breach deli originator with scarab of wisps. my hits cant be evaded nor blocked

+1, very weird bug
unstable breach in 16.5 originator map, 1x wisp and 2x monstrous lineage scarab with 2 instability scarab, beyond on tree + delirium orb on the map itself, many mobs spawn per map and some in the end are ALMOST ALWAYS INVINCIBLE AND INVISIBLE, which sux since i tend to loot the map after cleaning it... hope this gets fixed on next patch or i'll never be reaching level 100

+1 very weird, also seemed to pop up the one timeI ran into the "rare monsters fracture" mod running breach beyond

Bug Report ID: #983,210,594

+1 this is an ongoing issue and hasn't been fixed yet.