alphamodel

BTW, I tried to use `pyrogram` to send video, and it works. I also checked code for these two functions, they are almost identical. Any idea what is going on...

@Lonami No, I do not find solution within `telethon`. It seems no one is interested in the issue, and `pyrogram` is able to provide the functionality as mentioned in the...

I partially traced the code, for the case when the file is uploaded using `upload_file` function, the `send_file` code does not handle thumbnail at all: https://github.com/LonamiWebs/Telethon/blob/a353ae3b6511592bdb25dbf47075eaeb75a2acdb/telethon/client/uploads.py#L642-L659 Sorry, seems in the...

@Lonami Are the size or dimensions of image too large?

Maybe for file larger than 10MB, telegram will not generate thumbnail for it and use the custom one. Otherwise, telegram will use thumbnail generated by its server?

@reeshmabijosh I would not recommend to do so, as the sources for this dataset are mostly not updated anymore. The sources working now are MOH Singapore and WHO, and they...