diff --git a/package-lock.json b/package-lock.json
index 3590590e..cb513310 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "game-services",
-  "version": "0.80.5",
+  "version": "0.80.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "game-services",
-      "version": "0.80.5",
+      "version": "0.80.6",
       "license": "MIT",
       "dependencies": {
         "@clickhouse/client": "^1.11.0",
diff --git a/package.json b/package.json
index cad7646d..8e3d5e3a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "game-services",
-  "version": "0.80.5",
+  "version": "0.80.6",
   "description": "",
   "main": "src/index.ts",
   "scripts": {
diff --git a/src/entities/subscribers/player-group.subscriber.ts b/src/entities/subscribers/player-group.subscriber.ts
index b1cd0e2d..a4a975e8 100644
--- a/src/entities/subscribers/player-group.subscriber.ts
+++ b/src/entities/subscribers/player-group.subscriber.ts
@@ -4,6 +4,7 @@ import Player from '../player'
 import LeaderboardEntry from '../leaderboard-entry'
 import PlayerGameStat from '../player-game-stat'
 import { createRedisConnection } from '../../config/redis.config'
+import { captureException } from '@sentry/node'
 
 const enableLogging = process.env.NODE_ENV !== 'test'
 
@@ -57,7 +58,8 @@ export default class PlayerGroupSubscriber implements EventSubscriber {
             console.info(`Group memberships lock created for ${player.id}`)
           }
 
-          if (await checkGroupMemberships(em, player)) {
+          const shouldRefresh = await checkGroupMemberships(em, player)
+          if (shouldRefresh) {
             const label = `Refreshing memberships for ${player.id}`
 
             /* v8 ignore next 3 */
@@ -73,6 +75,9 @@ export default class PlayerGroupSubscriber implements EventSubscriber {
             }
           }
         }
+      } catch (err) {
+        console.error(`Failed checking memberships: ${(err as Error).message}`)
+        captureException(err)
       } finally {
         if (lockCreated) {
           /* v8 ignore next 3 */
diff --git a/src/lib/groups/checkGroupMemberships.ts b/src/lib/groups/checkGroupMemberships.ts
index 78fc7622..d6e67d0c 100644
--- a/src/lib/groups/checkGroupMemberships.ts
+++ b/src/lib/groups/checkGroupMemberships.ts
@@ -25,7 +25,7 @@ class PlayerGroupMember {
 export default async function checkGroupMemberships(em: EntityManager, player: Player): Promise<boolean> {
   const groups = await em.repo(PlayerGroup).find({
     game: player.game
-  }, getResultCacheOptions(`groups-for-memberships-${player.game}`))
+  }, getResultCacheOptions(`groups-for-memberships-${player.game}`, 1000))
 
   if (groups.length === 0) {
     return false
@@ -38,7 +38,7 @@ export default async function checkGroupMemberships(em: EntityManager, player: P
     console.time(label)
   }
 
-  let shouldFlush = false
+  let shouldRefresh = false
 
   for (const group of groups) {
     await group.members.init({ ref: true })
@@ -49,7 +49,7 @@ export default async function checkGroupMemberships(em: EntityManager, player: P
     const notEligibleButInGroup = !playerIsEligible && playerCurrentlyInGroup
 
     if (eligibleButNotInGroup || notEligibleButInGroup) {
-      shouldFlush = true
+      shouldRefresh = true
     }
 
     const groupMember = new PlayerGroupMember(player, group)
@@ -74,5 +74,5 @@ export default async function checkGroupMemberships(em: EntityManager, player: P
     console.timeEnd(label)
   }
 
-  return shouldFlush
+  return shouldRefresh
 }
diff --git a/src/tasks/cleanupOnlinePlayers.ts b/src/tasks/cleanupOnlinePlayers.ts
index 007fb67a..2b4a482d 100644
--- a/src/tasks/cleanupOnlinePlayers.ts
+++ b/src/tasks/cleanupOnlinePlayers.ts
@@ -18,6 +18,7 @@ type CleanupStats = {
   newSessionDurationMinutes: number[]
   newSessionDurationLessThanOneMinute: number
   presenceUpdated: number
+  presenceDeleted: number
 }
 
 let cleanupStats: Record<number, CleanupStats>
@@ -31,7 +32,8 @@ function getOrCreateGameCleanupStats(gameId: number): CleanupStats {
       hadSessionSinceOriginal: 0,
       newSessionDurationMinutes: [],
       newSessionDurationLessThanOneMinute: 0,
-      presenceUpdated: 0
+      presenceUpdated: 0,
+      presenceDeleted: 0
     }
   }
   return cleanupStats[gameId]
@@ -134,6 +136,12 @@ async function cleanupPresence(em: EntityManager, clickhouse: ClickHouseClient,
   }
 }
 
+async function removeDisconnectedPresence(em: EntityManager, presence: PlayerPresence) {
+  const gameStats = getOrCreateGameCleanupStats(presence.playerAlias.player.game.id)
+  gameStats.presenceDeleted++
+  await em.removeAndFlush(presence)
+}
+
 export default async function cleanupOnlinePlayers() {
   const orm = await MikroORM.init(ormConfig)
   const em = orm.em.fork()
@@ -157,6 +165,17 @@ export default async function cleanupOnlinePlayers() {
     await cleanupSession(em, clickhouse, session)
   }
 
+  // todo, find out how this is happening
+  const disconnectedPresence = await em.repo(PlayerPresence).find({
+    player: null
+  })
+
+  console.info(`Found ${disconnectedPresence.length} disconnected presence`)
+
+  for (const presence of disconnectedPresence) {
+    await removeDisconnectedPresence(em, presence)
+  }
+
   const onlinePresence = await em.repo(PlayerPresence).find({
     online: true,
     updatedAt: {
@@ -167,6 +186,8 @@ export default async function cleanupOnlinePlayers() {
     populate: ['player']
   })
 
+  console.info(`Found ${onlinePresence.length} online presence`)
+
   for (const presence of onlinePresence) {
     await cleanupPresence(em, clickhouse, presence)
   }
diff --git a/tests/tasks/cleanupOnlinePlayers.test.ts b/tests/tasks/cleanupOnlinePlayers.test.ts
index 8515e847..c05b6870 100644
--- a/tests/tasks/cleanupOnlinePlayers.test.ts
+++ b/tests/tasks/cleanupOnlinePlayers.test.ts
@@ -7,6 +7,7 @@ import { formatDateForClickHouse } from '../../src/lib/clickhouse/formatDateTime
 import PlayerPresenceFactory from '../fixtures/PlayerPresenceFactory'
 import assert from 'node:assert'
 import PlayerPresence from '../../src/entities/player-presence'
+import Player from '../../src/entities/player'
 
 describe('cleanupOnlinePlayers', () => {
   beforeEach(() => {
@@ -387,4 +388,32 @@ describe('cleanupOnlinePlayers', () => {
     expect(updatedPresence.online).toBe(true)
     expect(updatedPresence.updatedAt).toEqual(originalUpdatedAt)
   })
+
+  it('should delete presence that no longer has a player', async () => {
+    vi.useRealTimers()
+
+    const [, game] = await createOrganisationAndGame()
+    const player = await new PlayerFactory([game])
+      .state(async (player) => ({
+        presence: await new PlayerPresenceFactory(player.game)
+          .online()
+          .state(() => ({ updatedAt: subDays(new Date(), 2) }))
+          .one()
+      }))
+      .one()
+    await em.persistAndFlush(player)
+
+    assert(player.presence)
+    const originalPresenceId = player.presence.id
+
+    await em.nativeDelete(Player, player.id)
+
+    const originalPresence = await em.repo(PlayerPresence).findOne(originalPresenceId)
+    assert(originalPresence)
+
+    await cleanupOnlinePlayers()
+
+    const updatedPresence = await em.refresh(originalPresence)
+    expect(updatedPresence).toBeNull()
+  })
 })