HowTo Correct Inconsistent Tasks Loading

We have struggled for a bit with inconsistent loading of Tasks within tickets.
On the initial load there is often a limited subset of tasks:
 

If the user refreshes, F5, the Tasks list then populates as expected:
 

Any recommendations on how to resolve this inconsistency is greatly appreciated. 
When this occurs, no errors are dumped to the Dev Console.
Portal Version: 8.2.2.2012

My apologies if my search skills are weak and I missed a similar post.
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