There's been an issue that started about a year ago which has been called the "missing text" issue among other things. This started when OCF introduced a long-overdue software / server upgrade. Posts that contained certain hidden characters "disappeared" - well, the post box was still there, but not the actual message text. So you will see like you describe the post box and signature, but not the message.

This happened a lot with my posts as I created a lot of them in MsWord and then did a "copy/paste" into the forum dialog box. I was not the only OCF member that did that, so when doing searches you will find a lot of blank messages.

We found out that the messages are actaully still there, but because of certain hidden characters will no longer display.

This was also happening with new posts if the user used copy/paste, or included certain characters.

So I don't believe it is related to the device you are using. I use a laptop, iPad and iPhone to access the forum.