diff --git a/packages/core/src/highlevel/methods/chats/archive-chats.ts b/packages/core/src/highlevel/methods/chats/archive-chats.ts
index 1e0e53b0..46482d3d 100644
--- a/packages/core/src/highlevel/methods/chats/archive-chats.ts
+++ b/packages/core/src/highlevel/methods/chats/archive-chats.ts
@@ -1,4 +1,5 @@
 import { MaybeArray } from '../../../types/utils.js'
+import { isPresent } from '../../../utils/type-assertions.js'
 import { ITelegramClient } from '../../client.types.js'
 import { InputPeerLike } from '../../types/index.js'
 import { resolvePeerMany } from '../users/resolve-peer-many.js'
@@ -15,7 +16,7 @@ export async function archiveChats(client: ITelegramClient, chats: MaybeArray<In
 
     const updates = await client.call({
         _: 'folders.editPeerFolders',
-        folderPeers: resolvedPeers.map((peer) => ({
+        folderPeers: resolvedPeers.filter(isPresent).map((peer) => ({
             _: 'inputFolderPeer',
             peer,
             folderId: 1,
diff --git a/packages/core/src/highlevel/methods/dialogs/get-peer-dialogs.ts b/packages/core/src/highlevel/methods/dialogs/get-peer-dialogs.ts
index 96e80deb..438565b8 100644
--- a/packages/core/src/highlevel/methods/dialogs/get-peer-dialogs.ts
+++ b/packages/core/src/highlevel/methods/dialogs/get-peer-dialogs.ts
@@ -1,4 +1,5 @@
 import { MaybeArray } from '../../../types/utils.js'
+import { isPresent } from '../../../utils/type-assertions.js'
 import { ITelegramClient } from '../../client.types.js'
 import { Dialog } from '../../types/messages/dialog.js'
 import { InputPeerLike } from '../../types/peers/index.js'
@@ -15,7 +16,7 @@ export async function getPeerDialogs(client: ITelegramClient, peers: MaybeArray<
     const res = await client.call({
         _: 'messages.getPeerDialogs',
         peers: await resolvePeerMany(client, peers).then((peers) =>
-            peers.map((it) => ({
+            peers.filter(isPresent).map((it) => ({
                 _: 'inputDialogPeer',
                 peer: it,
             })),
diff --git a/packages/core/src/highlevel/methods/misc/normalize-privacy-rules.ts b/packages/core/src/highlevel/methods/misc/normalize-privacy-rules.ts
index 8c9edcf3..d09fb4eb 100644
--- a/packages/core/src/highlevel/methods/misc/normalize-privacy-rules.ts
+++ b/packages/core/src/highlevel/methods/misc/normalize-privacy-rules.ts
@@ -1,5 +1,6 @@
 import { tl } from '@mtcute/tl'
 
+import { isPresent } from '../../../utils/type-assertions.js'
 import { ITelegramClient } from '../../client.types.js'
 import { InputPrivacyRule } from '../../types/index.js'
 import { toInputUser } from '../../utils/index.js'
@@ -36,7 +37,7 @@ export async function _normalizePrivacyRules(
 
             res.push({
                 _: rule.allow ? 'inputPrivacyValueAllowChatParticipants' : 'inputPrivacyValueDisallowChatParticipants',
-                chats: chats.map((peer) => {
+                chats: chats.filter(isPresent).map((peer) => {
                     if ('channelId' in peer) return peer.channelId
                     if ('chatId' in peer) return peer.chatId
 
diff --git a/packages/core/src/highlevel/methods/users/resolve-peer-many.ts b/packages/core/src/highlevel/methods/users/resolve-peer-many.ts
index b6a19765..fc1469a5 100644
--- a/packages/core/src/highlevel/methods/users/resolve-peer-many.ts
+++ b/packages/core/src/highlevel/methods/users/resolve-peer-many.ts
@@ -2,7 +2,8 @@ import { tl } from '@mtcute/tl'
 
 import { ConditionVariable } from '../../../utils/condition-variable.js'
 import { ITelegramClient } from '../../client.types.js'
-import { InputPeerLike } from '../../types/index.js'
+import { MtPeerNotFoundError } from '../../types/errors.js'
+import { InputPeerLike } from '../../types/peers/index.js'
 import { resolvePeer } from './resolve-peer.js'
 
 /**
@@ -10,6 +11,8 @@ import { resolvePeer } from './resolve-peer.js'
  * while also normalizing and removing
  * peers that can't be normalized to that type.
  *
+ * If a peer was not found, it will be skipped.
+ *
  * Uses async pool internally, with a concurrent limit of 8
  *
  * @param peerIds  Peer Ids
@@ -24,11 +27,16 @@ export async function resolvePeerMany<T extends tl.TypeInputPeer | tl.TypeInputU
 /**
  * Get multiple `InputPeer`s at once.
  *
+ * If a peer was not found, `null` will be returned instead
+ *
  * Uses async pool internally, with a concurrent limit of 8
  *
  * @param peerIds  Peer Ids
  */
-export async function resolvePeerMany(client: ITelegramClient, peerIds: InputPeerLike[]): Promise<tl.TypeInputPeer[]>
+export async function resolvePeerMany(
+    client: ITelegramClient,
+    peerIds: InputPeerLike[],
+): Promise<(tl.TypeInputPeer | null)[]>
 
 /**
  * @internal
@@ -37,18 +45,28 @@ export async function resolvePeerMany(
     client: ITelegramClient,
     peerIds: InputPeerLike[],
     normalizer?: (obj: tl.TypeInputPeer) => tl.TypeInputPeer | tl.TypeInputUser | tl.TypeInputChannel | null,
-): Promise<(tl.TypeInputPeer | tl.TypeInputUser | tl.TypeInputChannel)[]> {
-    const ret: (tl.TypeInputPeer | tl.TypeInputUser | tl.TypeInputChannel)[] = []
+): Promise<(tl.TypeInputPeer | tl.TypeInputUser | tl.TypeInputChannel | null)[]> {
+    const ret: (tl.TypeInputPeer | tl.TypeInputUser | tl.TypeInputChannel | null)[] = []
 
     const limit = 8
 
     if (peerIds.length < limit) {
         // no point in using async pool for <limit peers
-        const res = await Promise.all(peerIds.map((it) => resolvePeer(client, it)))
+        const res = await Promise.all(
+            peerIds.map((it) =>
+                resolvePeer(client, it).catch((e) => {
+                    if (e instanceof MtPeerNotFoundError) {
+                        return null
+                    }
+                    throw e
+                }),
+            ),
+        )
 
         if (!normalizer) return res
 
         for (const value of res) {
+            if (!value) continue
             const norm = normalizer(value)
 
             if (norm) {
@@ -66,9 +84,14 @@ export async function resolvePeerMany(
     let nextWorkerIdx = 0
 
     const fetchNext = async (idx = nextWorkerIdx++): Promise<void> => {
-        const result = await resolvePeer(client, peerIds[idx])
-
-        buffer[idx] = result
+        try {
+            const result = await resolvePeer(client, peerIds[idx])
+            buffer[idx] = result
+        } catch (e) {
+            if (e instanceof MtPeerNotFoundError) {
+                buffer[idx] = null
+            } else throw e
+        }
 
         if (nextIdx === idx) {
             cv.notify()
@@ -98,11 +121,12 @@ export async function resolvePeerMany(
 
             nextIdx++
 
-            if (!buf) continue
-
             if (!normalizer) {
                 ret.push(buf)
-            } else {
+                continue
+            }
+
+            if (buf !== null) {
                 const norm = normalizer(buf)
 
                 if (norm) {