At times we have seen thumbnail images disappear from the Qlik Sense apps or Sheets after the app is published from QMC.
The images appears fine under "My Work" area, but disappear when published.
All versions of Qlik Sense
This mostly is an issue with the static contents not being migrated properly after an upgrade.
- This mostly is an issue with the static contents not being migrated properly after an upgrade, or in certain scenario where a node fails to gather the resource form the configured share. Please do the following in order to validate:
- Go to QMC -> Apps & get the App ID with which you have the issue.
- Now go to the Static Content (shared folder for your persistence model) -> App Content & look for that AppID.
- Go inside the AppID folder & see if that image exists
If it doesn't, then that means the image wasn't migrated after the upgrade and will have to be moved manually. After the image is brought back to that folder, the thumbnail appears fine.