Computer: Apple MacBook Pro (2012) 16GB RAM 756GSSD using Yosemite OS X 10.10.5
Recently upgraded from v9 to v14, after upgrading from Mountain Lion to Yosemite (to accommodate system requirements).
Note: I have been using Premiere Elements 9 without difficulty for several years.
Having set up clips in order on my timeline, they're-arrange in order, seemingly following mouse movements - even though nothing is selected.
It can happen to a single clip, or group of clips and happens while I'm editing.
Cannot upgrade to El Capitain, as other applications I require do not operate on this platform.
Appreciate any advice.
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