Planning and Chart Boards no longer show same totals as Task Board

The Task board in 5.0 showed a total of 40 hours, as did the planning board and the "projected" completed work for today.

Upgraded to 5.2, and the planning board and chart board (attached) suddenly up to 200+ hours while the Task Board (attached) remained consistent

Reverting to 5.1 put the chart board and planning board back in sync with the task board (attached)

The Context in question uses a filter that explicitly includes certain tasks and subtask types.
There were definitely large excluded subtasks under included tasks.