After the Update it isn't possibly anymore to upload or download docx attachments anymore. Tried in different Browser Variatns.
The Upload of docx attachments shows an attachment window and fills the progress bar, but the attachment windows stays still there and no file is uploaded.
The uploaded docx attachments shows an "You have insufficient rights to download this resource. Contact forum administrator for further details.".
PDF and image attachments works great.
The list of attachment types is checked. docx were added and we tried to disable the list too. Both had done no changes.