SurveyJS question not showing
Diagnose a SurveyJS question that never appears by checking its stored values, visibleIf rule, parent visibility, and behavior controlled by the surrounding app.
Read the guideConditional-form troubleshooting
Start with the failure you can see.
These guides turn common SurveyJS, REDCap, and FHIR Questionnaire symptoms into definition-level checks: which answer a rule reads, whether a branch is possible, and where runtime behavior takes over.
Each guide separates what FormPath can establish from behavior that must still be checked in the native product or target implementation.
SurveyJS
Native SurveyJS investigations.
Debug visibleIf rules and hidden-answer behavior with native-runtime evidence where the supported analysis permits it.
SurveyJS visibleIf not working
Debug SurveyJS visibleIf expressions by checking braces, question names, stored choice values, value types, parent visibility, and behavior controlled by the surrounding app.
Read the guideclearInvisibleValues and stale answers
Understand when a hidden SurveyJS answer is kept, how it can still affect later questions, and when clearing it as soon as it hides changes behavior.
Read the guideSurveyJS calculated value not working
Find expression questions and calculated values that reference names absent from the supplied definition before they produce a misleading total or category.
Read the guideREDCap
Data-dictionary logic and change control.
Check a supported translation of REDCap branching logic, then take the evidence back to the live project for confirmation.
REDCap branching logic not working
Trace a REDCap branch that never appears by checking field names, stored choice codes, checkbox syntax, and logic that depends on the running project.
Read the guideREDCap choice code changed
Find branching rules left behind after a REDCap answer code changes, then distinguish a translated regression from work that still needs native testing.
Read the guideCheck a REDCap dictionary before launch
Add a local definition-level check to REDCap pre-launch testing without confusing translated logic evidence with validation of the live project.
Read the guideFHIR Questionnaire
Focused enableWhen troubleshooting.
Inspect supported Questionnaire conditions without confusing finite-model evidence with FHIR validation or renderer behavior.
FHIR enableWhen answer-code mismatch
Check whether a FHIR Questionnaire enableWhen condition expects a code that its source item never offers, while preserving terminology and runtime limits.
Read the guideFHIR enableBehavior all or any
Choose and test FHIR Questionnaire enableBehavior when an item has multiple enableWhen conditions, including conditions that cannot all hold.
Read the guideFHIR enableWhen missing linkId
Find an enableWhen question reference that no longer matches a Questionnaire item linkId without turning the missing dependency into a false proof.
Read the guideDefinition in hand?
Move from a symptom to an inspectable result.
Paste SurveyJS or FHIR JSON, or a REDCap Data Dictionary CSV. FormPath keeps the definition local and returns evidence with its native or translated evidence boundary.
Check the definition