Thanks @Mylenium for good questions. Here's some more info - The project was originally created in version 13.5.1 (mac 64) and now is being opened and converted to work with the latest version of After Effects. There are a few dozen comps in the file. Sadly some of the footage associate with the file was lost due to a hard drive failure a few years ago. I have replaced the files sans a few and that issue seems to be working its way out. The downside is that because AE won't let me successfully save the file after converting it (when it does save it's a blank file with no comps) due to the error. This means when I open the file and replace and repair the missing content that work is for not and isn't able to be saved. Also strangely enough the comps don't seem to update or show anything in the comp preview panel. Meaning, when I change aspects of the comps I don't see any changes in the window displayed. It also lists three plugins as missing - DE ElectricArcs, DE Glower and DE Sparks which are all DigieEffects plugins. However, I have the plugins still in my system the issue is that at some point DigieEffects updated the plugins to be named without the DE. It also seems that they removed the Glower plugin. Maybe the issue is I need to track down the plugins that are missing and try them out? I have already contacted DigieEffects tech support and have heard nothing. Here is the troubled file in question in case anyone is curious - https://dl.dropboxusercontent.com/u/433483/AFD%20GO%20-%20ClassRoom.aep It's a very odd situation!
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