There used to be a separate forum for the AE Plugin SDK. It seems on the move to Communities, this was merged with Scripting and general AE use, which makes it nearly impossible to find the relevant posts that are really just about using the SDK. The only way to successfully solve issues with the SDK is to rely on the forum and the wealth of posts that have been and would continue to be put there, but now they are mixed in with everything else, so SDK developers are on their own. I did find my way with a web search to https://forums.adobe.com/community/aftereffects/aftereffects_sdk//content but it seems that when filtering by text as a way to search this listing, posts older than a certain date cannot be pulled up, and clicking on them just redirects to the main Adobe CC community page. This is a big loss and makes it much more difficult for developers to continue to add to the Adobe After Effects plugin ecosystem.
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