TR-004 TIME MACHINE backup failed

Has anyone else started experiencing Time Machine backup failures after updating to Tahoe26?
I’m going crazy. According to the QNAP official website, Tahoe26’s Time Machine can’t use non-ASCII characters… which means Chinese characters can’t be used… e04… Does anyone have more information? I’ve been discussing the issue with Apple Support for a week and it’s been completely useless.

Apple itself has implemented some AFP-related restrictions, which have also been mentioned in English discussion forums.

https://www.reddit.com/r/MacOS/comments/1negm9g/nas_for_time_machine_backups_apple_says_no_more/

The solution mentioned on Reddit is to first disable AFP and then try using SMB3…

However, I personally haven’t updated my work macOS yet, and in my work environment, I’m not eager to update and test right away…

Regarding the character issue you mentioned, you can refer to Why can’t I use Time Machine to back up to my QNAP NAS after updating to macOS 26 (Tahoe)? | QNAP

If, due to any concerns or difficulties, you are unable to change the path to English, you may consider submitting a support ticket to us. Our Support team may be able to provide suggestions based on your environment.

Based on the information currently available, this appears to be an issue with macOS. We will continue to monitor and investigate. Thank you!