I having the same problem. Using version 1.3.88.
When I try to upload a member’s photo I get the message “A theme or plugin compatibility issue”. All folders have been confirmed to be writable. I went into this file:
plugins/ultimate-member/core/lib/upload/um-image-upload.php
At line 45 there is this line:
if(isset($_FILES[$id]['name'])) {
This is where it appears to be failing. So in the “} else {” section I added print_r($_FILES); before setting the $ret[‘error’] message.
$_FILES returns an empty array. I have also set upload_max_size and post_max_size to 250MB (my upload is about 80k, JPG). I also set “enable_post_data_reading” to ON.
Permissions are set to 777 on uploads/ultimatemember and there is nothing appearing in the error log.
Any help is appreciated.