Bug LIFF.sendMessages shows permission error while user already grant chat_message.write

Question

### Pre condition, Condition to reproduce
user already grant  chat_message.write to the liff
and liff .sendMessages work normally before
### Issue/ Error Message details
Start from this morning, Liff.sendMessages response:
Error sending message: Error: user doesn't grant required permission yet 

### Accompanying respective source code


### Resolution Tried


### Reference information (Version / Platform/ environment)

Try this and click menu button to launch the liff, then click any thumbnail to send message  
https://lin.ee/jpoxpuG

Leo · Answer

IOS Line V12 still produce this error.
For your reference, you can add the OA account to open the text Liff by menu, then click any thumbnail to see the error 
https://lin.ee/jpoxpuG

Leo · Answer

it seems the error happen only if you launch liff app from menu button.

koji · Answer

The same problem is occurring in the Japan region.
https://www.line-community.me/ja/question/61e011fdd5929a273ae81b29/

mochikoAsTech · Answer

The problem you find may be affected by this outage.
https://twitter.com/LINE_DEV_EN/status/1481602708712742918

Q&A

Bug LIFF.sendMessages shows permission error while user already grant chat_message.write

Pre condition, Condition to reproduce

Issue/ Error Message details

Accompanying respective source code

Resolution Tried

Reference information (Version / Platform/ environment)