Hello,
Since this morning (around 10:30 JST) on January 23, 2026 (Japan Standard Time),
we have been experiencing an issue where requests to the Cesium ion API return responses with the status field set to ERROR.
The APIs we have confirmed to be affected are:
We have confirmed that this issue occurs consistently across multiple Cesium ion accounts.
Therefore, we suspect that this is not an issue specific to a particular account or our client implementation, but rather a problem on the API side.
Due to this issue, critical parts of our service are currently unavailable, causing a severe service outage.
Could you please let us know if there is any information about the cause of this error, possible workarounds, or any ongoing incidents related to this issue?
1 Like
Hi,
We currently aren’t seeing any outages or unexpected behaviors associated with the Cesium ion API. Would you be able to provide some more information around the issues you are seeing:
- Please provide a sample response that you are seeing from the API
- Please provide the request and the payload associated with it that you are making to the API
- Can you provide a username of the account that is seeing errors?
- Are you able to log in to your Cesium ion account and load assets in the Cesium ion SaaS UI?
Thanks,
Ankit
Hi Ankit,
Thank you for your reply.
At the moment, the team member who has full details is unavailable, so I will answer based on the information I currently have.
I will follow up later with any missing details once they are confirmed.
1 - Sample Response from API
When sending a request to the Create an archive API, we receive the following response:
{
"id": 241505,
"assetId": 4163681,
"format": "ZIP",
"status": "ERROR",
"bytesArchived": 0
}
2 - Request Payload
This is currently under investigation.
I will provide the request payload details in a follow-up message.
3 - Account Username
The response shown in section 1 was returned when the request was made using the Cesium ion account with the username gl-dev.
4 - Cesium ion Web UI
In the Cesium ion Web UI, the asset itself appears in the asset list.
However, when opening the asset details page, an error message is displayed on the right-hand side of the screen.
Additional Information
On Cesium ion, we upload point cloud data (LAS format) as an asset and run the archive process to generate 3D Tiles.
However, the archive process fails, and as a result, the asset cannot be converted into 3D Tiles.
This issue can be reproduced using only the Cesium ion Web application.
The detailed reproduction steps are as follows:
- Open the Cesium ion Web application
- Navigate to the “My Assets” tab
- Click the “Add Data” button
- Click the “Add files…” button
- Select a local LAS file
- Turn ON the “Make available for download” toggle
- The “Draco compression” option is ON by default, but the issue occurs regardless of whether it is ON or OFF
- Click the “Upload” button
Once the process starts, the archive job begins in the “Make available for download” section at the bottom right.
After waiting for a while, the archive process fails, and the following error message is displayed:
“There was an error while processing the asset to be downloaded. Use the toggle to start the process again.”
Even after retrying multiple times as instructed, the process always fails.
Hi,
We have identified a bug in our system leading to failures in the archiving process. We are actively trying to address it. Thank you for reporting this and we will reach back out to you once the fix has been released.
Thanks,
Ankit
Hi,
This bug should now be fixed. Thank you for your patience while we investigated this issue. Please try to re-toggle the archive or let us know any asset ids you would like jobs to be re-run for.
Thanks,
Ankit
1 Like
After rerunning the archive process, we confirmed that the error reported in this thread no longer occurs and that it works as expected.
Thank you for your support.
