# Webapp/ Desktop App does not visualize Message Body, if type is slack\_attachment **URL:** \ **Category:** Troubleshooting\ **Created:** [August 27, 2025, 9:42am UTC](https://forum.mattermost.com/t/webapp-desktop-app-does-not-visualize-message-body-if-type-is-slack-attachment/25145 "2025-08-27T09:42:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![tobiangerstein](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/tobiangerstein/32/9041_2.png) [@tobiangerstein](https://forum.mattermost.com/u/tobiangerstein)\ **Post date:** [August 27, 2025, 9:42am UTC](https://forum.mattermost.com/t/webapp-desktop-app-does-not-visualize-message-body-if-type-is-slack-attachment/25145/1 "2025-08-27T09:42:23Z")
**Summary** Webapp/ Desktop App does not visualize Message Body, if type is slack\_attachment **Steps to reproduce** We are currently using slack compatibility feature for web hooks coming from our monitoring system. Since the update to version 10.5.7, we experiencing, that the web hook message is shown in the chat, however the body is not shown. [![Image](https://private-user-images.githubusercontent.com/13380485/466006441-28b3b478-407f-4687-a2a7-a4f2799bc29c.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NTYyODc5MDMsIm5iZiI6MTc1NjI4NzYwMywicGF0aCI6Ii8xMzM4MDQ4NS80NjYwMDY0NDEtMjhiM2I0NzgtNDA3Zi00Njg3LWEyYTctYTRmMjc5OWJjMjljLnBuZz9YLUFtei1BbGdvcml0aG09QVdTNC1ITUFDLVNIQTI1NiZYLUFtei1DcmVkZW50aWFsPUFLSUFWQ09EWUxTQTUzUFFLNFpBJTJGMjAyNTA4MjclMkZ1cy1lYXN0LTElMkZzMyUyRmF3czRfcmVxdWVzdCZYLUFtei1EYXRlPTIwMjUwODI3VDA5NDAwM1omWC1BbXotRXhwaXJlcz0zMDAmWC1BbXotU2lnbmF0dXJlPTAzNTVlMmNmYTI1MTVkZTdlZTE4MDQ2YWZmOWYzMDRiNDY0MTcyZTU2MjFjZjhkZDFiY2M0MDQ0ZThlNDVjMGImWC1BbXotU2lnbmVkSGVhZGVycz1ob3N0In0.kGEDgOVhDMpZBZKoQ70sJ2PIouHFtbeQoFkkVYTWPB8)](https://private-user-images.githubusercontent.com/13380485/466006441-28b3b478-407f-4687-a2a7-a4f2799bc29c.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.kGEDgOVhDMpZBZKoQ70sJ2PIouHFtbeQoFkkVYTWPB8) The problem only occurs in the Desktop versions or in the browser. The mobile IOS app is showing it without any problems: [![Image](https://private-user-images.githubusercontent.com/13380485/466010492-fcb053a3-4e29-4758-9cac-7e942f366568.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.V2k12AKEFBQKXawcZ4_lE3ujSbiYuYxkJ_efE-QH3Z0)](https://private-user-images.githubusercontent.com/13380485/466010492-fcb053a3-4e29-4758-9cac-7e942f366568.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.V2k12AKEFBQKXawcZ4_lE3ujSbiYuYxkJ_efE-QH3Z0) I debugged the responses of the calls in the browser and I see the full body in the response: `{ "id": "tq8tddmjzidcixu7x98nkotpqo", "reply_count": 4, "last_reply_at": 1752477414411, "last_viewed_at": 1752478771289, "participants": [{ "id": "5k4hahi99in8xbq3ehc1grxpqe", "create_at": 1528884693513, "update_at": 1751379151013, "delete_at": 0, "username": "dpailer", "auth_data": "", "auth_service": "", "email": "novatec.pailer@extaccount.com", "nickname": "", "first_name": "Dirk", "last_name": "Pailer", "position": "Dev @Xentry-Core-Team", "roles": "system_user", "props": { "customStatus": "{\"emoji\":\"palm_tree\",\"text\":\"On a vacation\",\"duration\":\"date_and_time\",\"expires_at\":\"2025-06-22T16:00:00Z\"}", "last_search_pointer": "4" }, "last_picture_update": 1751379151013, "locale": "en", "timezone": { "automaticTimezone": "Europe/Berlin", "manualTimezone": "", "useAutomaticTimezone": "true" }, "disable_welcome_email": false }, { "id": "omnr6z9thjnxtkei31n8pofs9y", "create_at": 1570624526854, "update_at": 1751877225394, "delete_at": 0, "username": "tangers", "auth_data": "", "auth_service": "", "email": "novatec.angerstein@extaccount.com", "nickname": "", "first_name": "Tobias", "last_name": "Angerstein", "position": "Monitoring & Logging @ Xentry Core", "roles": "system_user", "props": { "customStatus": "{\"emoji\":\"party\",\"text\":\"Available\",\"duration\":\"today\",\"expires_at\":\"2025-07-07T22:00:00Z\"}", "last_search_pointer": "0" }, "last_picture_update": 1659006710363, "locale": "en", "timezone": { "automaticTimezone": "Europe/Berlin", "manualTimezone": "", "useAutomaticTimezone": "true" }, "disable_welcome_email": false }], "post": { "id": "tq8tddmjzidcixu7x98nkotpqo", "create_at": 1752476142152, "update_at": 1752477414411, "edit_at": 0, "delete_at": 0, "is_pinned": false, "user_id": "w8ijrrwhbbyeudfbc4ydo3zdar", "channel_id": "qukcdu38ainotmguqajuwjbc6c", "root_id": "", "original_id": "", "message": "", "type": "slack_attachment", "props": { "attachments": [{ "actions": [ { "id": "dsjadijqqpydjko5m5k9zp5dcr", "type": "button" }], "author_icon": "", "author_link": "", "author_name": "", "color": "good", "fallback": "Alert Channel test: It works!\u003Chttps://www.instana.com/docs/ecosystem/slack/|Open in Instana\u003E", "fields": [{ "short": true, "title": "Severity", "value": "Info" }, { "short": true, "title": "Manual Close Username", "value": "test-username" }, { "short": true, "title": "Manual Close Timestamp", "value": "1752476142128" }, { "short": true, "title": "Manual Close Reason", "value": "test-reason" }], "footer": "", "footer_icon": "", "id": 0, "image_url": "", "pretext": "Alert Channel test", "text": "It works!", "thumb_url": "", "title": "Alert Channel test", "title_link": "https://www.instana.com/docs/ecosystem/slack/", "ts": null } ], "from_webhook": "true", "override_icon_url": "https://avatars3.githubusercontent.com/u/5128994?s=280&v=4", "override_username": "Instana", "webhook_display_name": "XENTRY-Cloud-Events - Core" }, "hashtags": "", "file_ids": [], "pending_post_id": "", "has_reactions": true, "reply_count": 0, "last_reply_at": 0, "participants": null }, "unread_replies": 0, "unread_mentions": 0, "is_urgent": false, "delete_at": 0 }` However it seems like all messages of type slack\_attachment are not properly visualized anymore. **Expected behavior** Proper visualization of message button in the Desktop App/ WebApp, similar to the mobile IOS App. **Observed behavior** The message body is not shown: [![Image](https://private-user-images.githubusercontent.com/13380485/466006441-28b3b478-407f-4687-a2a7-a4f2799bc29c.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.kGEDgOVhDMpZBZKoQ70sJ2PIouHFtbeQoFkkVYTWPB8)](https://private-user-images.githubusercontent.com/13380485/466006441-28b3b478-407f-4687-a2a7-a4f2799bc29c.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.kGEDgOVhDMpZBZKoQ70sJ2PIouHFtbeQoFkkVYTWPB8) I already created a GitHub issu for it: [[Bug]: Webapp/ Desktop App does not visualize Message Body, if type is slack\_attachment · Issue #33410 · mattermost/mattermost · GitHub](https://github.com/mattermost/mattermost/issues/33410) ---
**Author:** ![john.combs](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/john.combs/32/7118_2.png) [@john.combs](https://forum.mattermost.com/u/john.combs)\ **Post date:** [September 4, 2025, 7:14pm UTC](https://forum.mattermost.com/t/webapp-desktop-app-does-not-visualize-message-body-if-type-is-slack-attachment/25145/2 "2025-09-04T19:14:14Z")
Thanks for the thorough report, Tobias. And welcome to the forums! As a temporary workaround you can put the text in the root `message` (Markdown) or send via standard [Incoming Webhooks](https://docs.mattermost.com/integrations-guide/incoming-webhooks.html) / [Message attachments](https://developers.mattermost.com/integrate/reference/message-attachments/) formatting until a fix ships.