Empty left pane in new version
In the new version, there is an empty pane on the left side that I cannot collapse. This makes it difficult when editing and trying to reference another document in the same screen. Overall, I don't really care for the new version. Please make it less awkward, Adobe.
Thanks for reporting this issue, we have fixed similar kind of issue for the upcoming release. Also we hope that restarting acrobat would have solved the problem for you. Kindly update to the next release once available.
Thanks again for the reporting this issue.