Are there any devices that have experienced model-specific issues on Android?

Yes.
This article summarizes the operations performed at the time of occurrence, the error messages displayed, and the affected devices, as reported in the past.

Operations When the Error Occurs

• When starting a video upload
• When a video upload completes

Error Messages Displayed

• Failed to load the video. Please try the operation again.
• Failed to generate the video. Please try again.

Reference image

List of Affected Devices

Mobile devices running Android OS are collectively referred to as "Android devices," but the detailed behavior and specifications of devices vary by manufacturer.
In particular, it has been found that the specifications of the integrated circuit known as the "chipset" have a significant impact on Teachme Biz's video editing features.
As a result, there are rare cases where a device may not be compatible with certain Teachme Biz features.

The following types of cases have been reported in the past.

• The video compression format used by the device is not supported by Android OS, causing issues only during video registration and editing.
• The integrated circuit used in the device is unable to interpret the video editing content in Teachme Biz, causing issues.

Unfortunately, it is difficult to resolve this by updating the Teachme Biz app.
If you experience the same error on a device listed above, please perform the operation from a different device or a PC.

If you have any questions regarding this matter, please contact our support desk at support@teachme.jp.

Related: Contact Guidelines
https://help.teachme.jp/hc/en-us/articles/4408344482201