I think the simplest logic to pinpoint is to find out why the delay also occurs with the mouse rollover over a special tag thought. I have a number of special tag thoughts as pins and just rolling over them without a click causes the hang. The 'Tag Thought' label just appears frozen for 5 seconds (along with the rest of the plex) even if moving the mouse around. All other software active and running fine so yes, not a resource issue.
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