It seems to be some sort of front-end issue - The API returns the data element just fine and I can’t find any errors in the DHIS2 logs. The only error is from the JS console:
drop-down.js:54 Uncaught TypeError: Cannot read properties of undefined (reading ‘text’)
at r.getOptionText (drop-down.js:54:62)
at t.value (drop-down.js:170:33)
at t.value (drop-down.js:210:24)
at d._renderValidatedComponentWithoutOwnerOrContext (ReactCompositeComponent.js:799:1)
at d._renderValidatedComponent (ReactCompositeComponent.js:822:1)
at d.performInitialMount (ReactCompositeComponent.js:362:1)
at d.mountComponent (ReactCompositeComponent.js:258:1)
at Object.mountComponent (ReactReconciler.js:46:1)
at h.mountChildren (ReactMultiChild.js:238:1)
at h._createInitialChildren (ReactDOMComponent.js:697:1)
at h.mountComponent (ReactDOMComponent.js:516:1)
at Object.mountComponent (ReactReconciler.js:46:1)
at h.mountChildren (ReactMultiChild.js:238:1)
at h._createInitialChildren (ReactDOMComponent.js:697:1)
at h.mountComponent (ReactDOMComponent.js:516:1)
at Object.mountComponent (ReactReconciler.js:46:1)
at d.performInitialMount (ReactCompositeComponent.js:371:1)
at d.mountComponent (ReactCompositeComponent.js:258:1)
at Object.mountComponent (ReactReconciler.js:46:1)
at h.mountChildren (ReactMultiChild.js:238:1)
at h._createInitialChildren (ReactDOMComponent.js:697:1)
at h.mountComponent (ReactDOMComponent.js:516:1)
at Object.mountComponent (ReactReconciler.js:46:1)
at d._updateRenderedComponent (ReactCompositeComponent.js:765:1)
at d._performComponentUpdate (ReactCompositeComponent.js:724:1)
at d.updateComponent (ReactCompositeComponent.js:645:1)
at d.performUpdateIfNecessary (ReactCompositeComponent.js:561:1)
at Object.performUpdateIfNecessary (ReactReconciler.js:157:1)
at u (ReactUpdates.js:150:1)
at o.perform (Transaction.js:140:1)
at r.perform (Transaction.js:140:1)
at r.perform (ReactUpdates.js:89:1)
at Object.S [as flushBatchedUpdates] (ReactUpdates.js:172:1)
at o.closeAll (Transaction.js:206:1)
at o.perform (Transaction.js:153:1)
at Object.batchedUpdates (ReactDefaultBatchingStrategy.js:62:1)
at Object.l [as enqueueUpdate] (ReactUpdates.js:200:1)
at o (ReactUpdateQueue.js:24:1)
at Object.enqueueSetState (ReactUpdateQueue.js:219:1)
at o.setState (ReactComponent.js:63:1)
at t._next (EditModelForm.component.js:141:22)
at t.__tryOrUnsub (Subscriber.js:242:1)
at t.next (Subscriber.js:189:1)
at t._next (Subscriber.js:129:1)
at t.next (Subscriber.js:93:1)
at t._next (map.js:85:1)
at t.next (Subscriber.js:93:1)
at t._next (filter.js:89:1)
at t.next (Subscriber.js:93:1)
at t.notifyNext (combineLatest.js:133:1)
at t._next (InnerSubscriber.js:23:1)
at t.next (Subscriber.js:93:1)
at t.notifyNext (mergeMap.js:145:1)
at t._next (InnerSubscriber.js:23:1)
at t.next (Subscriber.js:93:1)
at i.schedule.value (PromiseObservable.js:66:1)