Workdrive comment links stopped working.

Workdrive comment links stopped working.

I have marked a PDF file with 95 comments, they have worked for a while. When i clicked on them they brought me to the correct page and showed me the outline that i had drew on the plans.

The comments included the page number of the outline, but now it only says #version 1 and #version 2. When i click the comment nothing happens. If i copy the link in the "..." menu of the comment, if brings me to the right page, but does not show the comment outline. Not to mention takes forever to open the file every time. 

Can something be done to 'repair' this function and get my comment links back?