'Some parts of your form have not been correctly filled in' - .mp4 file upload

[rw1]

i have a form with one file upload element that i am using to upload .mp4 files.

things that are working:
- access level set to a custom level which seems to be working fine.
- .mp4 file is being uploaded to specified directory ie images/videos/custom

things that aren't working:
- i have a redirect plugin set up on form, it is not redirecting
- after the file uploads, it stays on the same page and i get the error:

'Some parts of your form have not been correctly filled in'.

settings:
- maximum file size is 8192Kb which is ok
- storage type: file system
- ajax uploader: no
- allowed file types: left blank
- record in database: no
- content redirect: same page

fabrik: 3.0.4-198 (stuck on this version due to this issue)
joomla: 2.5.4

thanks!

 

[rw1]

update: ah, i think i have to specify that .mp4 files are allowed.