UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2773.0 Safari/537.36

Steps to reproduce the problem:
1.Open pdf file (e.g., http://arxiv.org/pdf/1504.00641v1.pdf
2.Search for a string that appears several times (e.g., 43)
3.Search again
4.Search again

What is the expected behavior?
Should find and move to 3rd instance

What went wrong?
Gets stuck at 2nd instance

Did this work before? Yes Several versions back

Chrome version: 53.0.2773.0  Channel: canary
OS Version: 10.0
Flash Version: Shockwave Flash 22.0 r0

Works on html pages, broken in pdf
Both hitting Enter and Ctrl-g are broken
Reopening the search window and repeating the search moves the result by two more entries (e.g., from 2nd to 4th)