Troubleshooting: export, download, and workspace
Fix problems with Lottie and video exports, download links, workspace saves, and opening in Lottie Creator.
Find your problem below and follow the steps. When you ask the AI to investigate, include the animation name and file name so it checks the right one.
-
Lottie export shows "UNSUPPORTED_FEATURE"
Some effects show in previews but can't be saved as Lottie.
- Ask the AI to read the error details.
- Ask it to rearrange the affected parts (transforms, masks, effects, mattes, or images) so they can be exported.
- Compare the new preview with the old one.
For text: A warning will name the text feature that can't be exported, such as animated font size. Ask the AI to replace it with a supported option, or keep it and export a video instead.
Only need it to look right? Export MP4 or WebM instead. These are videos, not Lottie animations.
-
My video has a white or black background
- White: Videos use the animation's background color, which is white unless you set one. Ask the AI to set the background you want.
- Black: MP4 doesn't support transparency, so transparent areas turn black. For a transparent background, export WebM with a transparent background.
-
The video is still being created, or is waiting
- Videos take time to create. Ask the AI to check the file again after the wait time it reports.
- Waiting for quota: You already have 8 videos being created or waiting. Yours starts when one finishes.
- Don't export again with the same file name. This replaces the file and cancels the video already being created.
- Error during creation: Read the error message and adjust the export (for example, fewer frames).
- render_unavailable: The server was busy. Ask the AI to export again.
- Video not available at all: Export PNG or Lottie JSON, or try again later.
-
Deleting a file shows "output_changed"
A newer export used the same file name after the AI last checked it, so the newer file was kept. Ask the AI to check the file again, then decide whether to delete it.
-
A download link expired or won't open
- Links last up to 15 minutes. Ask the AI for a fresh link to the same file.
- Files are kept for 7 days by default. If the file has expired, ask the AI to export it again.
- The link doesn't open in a browser: If the AI gave you an MCP resource address instead of a web link, ask it for a working download link.
-
Saving to my workspace failed
- Only the animation (as dotLottie) or a Lottie JSON file can be saved to the workspace. Download videos and PNG images instead.
- If you’re not sure the save worked, check your Drafts project before saving again. The file may already be there.
-
Opening in Lottie Creator failed
If the workspace file was deleted, the AI creates a new one and the link changes.
-
Loading a file from my workspace failed
Error What it means What to do unsupported_fileThe file format can't be read. Files created inside Lottie Creator can't be loaded yet. Ask the AI for the full error message file_not_foundThe file isn't in the connected account Check the file ID and the connected account file_too_largeThe file is over 12 MB Use a smaller file workspace_download_failedThe download failed Ask the AI to try again -
The AI asks me to confirm a reset
Only confirm if you want to clear that animation. A reset removes its exported files and cancels videos being created. Download or save anything you need first.
To undo one change instead, ask the AI to restore an earlier version. A restore can also bring back the scene after a reset. Your AI app must be able to show the confirmation form. If it can't, the AI can't reset the animation.
Still need help?
Contact LottieFiles support and include:
- Your AI app name (for example, Claude or ChatGPT)
- The error message
- The animation name and file name
- The server version and engine revision (ask the AI to list your animations to get these)