I just updated Access Information. U can edit that post, and try upload a file and test it. I can insert by IPS software, but it always error. I try two this way for test this function
1. Upload file, Insert it by IPS, updated post, try download, but can't download.
2. Edit post, upload file again with same file, this time have two problem:
Name of file is: xxxx_filename.zip ( can download )
OR
Name is filename.zip, but the address is https://xxx.com/applications/core/interface/file/attachment.php?id=18&key=3978aa4f12d9f8a09f4a0471171a7b02 ( can download )
have &key
U can try this. Thanks.