Recently I've noticed that file uploads through the Craft admin panel have started to fail with the response "Error uploading the file: Uploaded file was empty". This error occurs when trying to upload a file to the server or to S3.
At first, I was able to get around the issue by switching to a different browser or clearing the current browsers history and cookies. For some reason that would consistently alleviate the issue for any user who tried it, but as of last week this no longer appears to work.
So far I have tried:
- Checking file permissions for the asset folder, they're set to 777
- Increasing the php memory_limit, post_max_size, and upload_max_filesize
- Uploading different file types and sizes looking for specific type or size that works, even a 20kb jpg fails.
Has anyone seen this before or have an idea where to look to fix the issue?