Question
Published and Used DX Custom Component Removed from Constellation Service
Using
React SDK release - 8.8.20
Pega Infinity™ v8.8
DSS:
I have created few custom DX component and was successfully pushed to Pega server and successfully added to portal via App Studio and getting expected view in React SDK, but later few of the components is not visible to add Via App studio, Even which was added to portal previously.
Published Components is still visible under Rule-UI-Component
but not visible in App Studio.
In Below Screenshot, you can notice that custom component named "AgentDetailCards", "CaseDetailSummary" and "ProcessPieChart" was added to Portal via App Studio, but after someday Its started throwing error for "AgentDetailCards" and not Visible in App Studio, Even I republished its not working.
Anyone Please do help me with this issue.
Pegasystems Inc.
GB
Can you try opening and saving your application rule? This should force a re-sync of the components.
Instellars Global Consulting Pvt. Ltd.
IN
@Marc Alderman yes, its working after saving again from application rule, but same issue occurred multiple times, I want know how and why these custom DX components is removed?
Pegasystems Inc.
GB
Saving the application rule will trigger a re-sync of the components with the app static service. When you don't see the components do you see any errors / failed network requests in the browser dev tools?
Instellars Global Consulting Pvt. Ltd.
IN
@Marc Alderman Yes, I found request error in network trace in browser dev tool, Already added one screenshot above, adding one more screenshot below 
Pegasystems Inc.
CA
We had a similar issue in the lab environment(see the log below). Upgrading the Java version fixed the component publishing issue and components are visible in the App STudio.
Log: Error in delta sync API call : Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty