Hierarchy timeline freeze with key milestone events enabled

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

Hierarchy tree timeline freezes after edit when key milestone events are enabled

STEPS TO REPRODUCE:

1. MUX > Hierarchies
2. Create an investment hierarchy
3. On the Investments tab add a few projects
4. On the Hierarchy view create a tree structure
5. Go to the Timeline view and edit different project names on the view. Expand and collapse the tree view. Everything works fine
6. Open a project you have got on the tree, create a milestone and set it as Key Task 
7. Go back to the Hierarchy Timeline view and edit different project names on the view. Expand and collapse the tree view. Everything works fine
8. View Options > Events > Enable the Key Milestones checkbox
9. Go back to the Hierarchy Timeline view and edit different project names on the view. Expand and collapse the tree view.

Expected Results: Name editions are saved and tree expands/collapses
Actual Results: First project name edit saves. Afterwards, the page freezes

Workaround: Refresh the page or un-ckeck the Key Milestones events

Developer tools console shows the following error

ppm-components-db1241a4e8.min.js:18  Uncaught TypeError: Cannot read properties of undefined (reading '5113117')
    at B.getKeyMilestonesForInvestment (ppm-components-db1241a4e8.min.js:18:1399951)
    at r.renderer (ppm-components-db1241a4e8.min.js:18:1399292)
    at Object.render_item (ppm-lib-959a385b0b.min.js:351:390756)
    at r (ppm-lib-959a385b0b.min.js:351:161169)
    at c.<anonymous> (ppm-lib-959a385b0b.min.js:351:162430)
    at c.n (ppm-lib-959a385b0b.min.js:351:689491)
    at e.callEvent (ppm-lib-959a385b0b.min.js:351:690114)
    at c.<anonymous> (ppm-lib-959a385b0b.min.js:351:162050)
    at c.n (ppm-lib-959a385b0b.min.js:351:689491)
    at e.callEvent (ppm-lib-959a385b0b.min.js:351:690114)
    at c.updateItem (ppm-lib-959a385b0b.min.js:351:149525)
    at Object.save (ppm-lib-959a385b0b.min.js:351:233277)
    at s (ppm-components-db1241a4e8.min.js:18:1517061)

Environment

Clarity 16.2.3, 16.3.0, 16.3.1

Cause

This is caused by DE165131

Resolution

This is fixed in Clarity 16.3.2

Workaround: refresh the page or untick the Key Milestones events