sendMultipleFileMessage can not create thumbnail?

[Moohyun]

I have a question about using sendMultipleFileMessage.
I can receive a message event onMessageUpdated,

but I can not receive thumbnails

[Chinmaya_Gupta]

Hello @Moohyun

Welcome to the Sendbird community!

For multiple files message, message.fileInfoList holds thumbnails. Can you check the message you received is instance of MultipleFilesMessage but not FileMessage?

[Moohyun]

yes it’s in the fileInfoList and message type is MultipleFilesMessage