Slack Pulse - No Image

Slack pulses, suddenly stopped showing images. nothing changed on config (slack or metabase) but no image anymore. I have just a link. what should I do ?


"browser-info": {
"language": "tr-TR",
"platform": "Win32",
"userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36 OPR/77.0.4054.277",
"vendor": "Google Inc."
"system-info": {
"file.encoding": "UTF-8",
"": "OpenJDK Runtime Environment",
"java.runtime.version": "11.0.7+10-post-Ubuntu-2ubuntu219.10",
"java.vendor": "Ubuntu",
"java.vendor.url": "",
"java.version": "11.0.7",
"": "OpenJDK 64-Bit Server VM",
"java.vm.version": "11.0.7+10-post-Ubuntu-2ubuntu219.10",
"": "Linux",
"os.version": "5.3.0-64-generic",
"user.language": "en",
"user.timezone": "Europe/Istanbul"
"metabase-info": {
"databases": [
"hosting-env": "unknown",
"application-database": "mysql",
"application-database-details": {
"database": {
"name": "MySQL",
"version": "8.0.20-0ubuntu0.19.10.1"
"jdbc-driver": {
"name": "MariaDB Connector/J",
"version": "2.6.2"
"run-mode": "prod",
"version": {
"date": "2021-08-03",
"tag": "v0.40.2",
"branch": "release-x.40.x",
"hash": "b884d29"
"settings": {
"report-timezone": "Europe/Istanbul"

Can attest we have the same issue.

The files are still being uploaded to #metabase_files just no longer being displayed in slack.

Guessing it was a change on Slack side rather than metabase but would be great to get this integration working again.

Also, found this GitHub issue:

thank you @bukharih. exactly this bug.

Same problem here, running 0.37.4 (Metabase) and 4.18.0 (Slack)

Same problem here for v0.39.2 (metabase) and 4.17.0 (Slack)

solved as of yesterday