diff --git a/gui/src/components/ImageHistory.tsx b/gui/src/components/ImageHistory.tsx
index 38d9e9bb..56f061a5 100644
--- a/gui/src/components/ImageHistory.tsx
+++ b/gui/src/components/ImageHistory.tsx
@@ -32,6 +32,7 @@ export function ImageHistory() {
       case JobStatus.SUCCESS:
         children.push([key, <ImageCard key={`history-${key}`} image={item.image} onDelete={removeHistory} />]);
         break;
+      case JobStatus.UNKNOWN:
       case JobStatus.FAILED:
         children.push([key, <ErrorCard key={`history-${key}`} image={item.image} retry={item.retry} />]);
         break;
diff --git a/gui/src/components/card/ErrorCard.tsx b/gui/src/components/card/ErrorCard.tsx
index 78b2698e..d9f3fb96 100644
--- a/gui/src/components/card/ErrorCard.tsx
+++ b/gui/src/components/card/ErrorCard.tsx
@@ -10,10 +10,10 @@ import { useStore } from 'zustand';
 import { shallow } from 'zustand/shallow';
 
 import { ClientContext, ConfigContext, OnnxState, StateContext } from '../../state/full.js';
-import { FailedJobResponse, RetryParams } from '../../types/api-v2.js';
+import { FailedJobResponse, JobStatus, RetryParams, UnknownJobResponse } from '../../types/api-v2.js';
 
 export interface ErrorCardProps {
-  image: FailedJobResponse;
+  image: FailedJobResponse | UnknownJobResponse;
   retry: Maybe<RetryParams>;
 }
 
@@ -54,7 +54,7 @@ export function ErrorCard(props: ErrorCardProps) {
           <Alert severity='error'>
             {t('loading.progress', image.steps)}
             <br />
-            {image.error}
+            {getImageErrorReason(image)}
           </Alert>
           <Stack direction='row' spacing={2}>
             <Tooltip title={t('tooltip.retry')}>
@@ -82,3 +82,11 @@ export function selectActions(state: OnnxState) {
     removeHistory: state.removeHistory,
   };
 }
+
+export function getImageErrorReason(image: FailedJobResponse | UnknownJobResponse) {
+  if (image.status === JobStatus.FAILED) {
+    return image.error;
+  }
+
+  return image.reason;
+}
diff --git a/gui/src/types/api-v2.ts b/gui/src/types/api-v2.ts
index 875a84ee..1135a6a6 100644
--- a/gui/src/types/api-v2.ts
+++ b/gui/src/types/api-v2.ts
@@ -62,6 +62,20 @@ export interface BaseJobResponse {
 
 export interface CancelledJobResponse extends BaseJobResponse {
   status: JobStatus.CANCELLED;
+
+  /**
+   * Error message to indicate if the job was cancelled by a client, admin, or the server.
+   */
+  reason: string;
+}
+
+export interface UnknownJobResponse extends BaseJobResponse {
+  status: JobStatus.UNKNOWN;
+
+  /**
+   * Error message to indicate why the job was marked as unknown, if there are extenuating circumstances.
+   */
+  reason: string;
 }
 
 /**
@@ -157,7 +171,8 @@ export type JobResponse
   | PendingJobResponse
   | RunningJobResponse
   | FailedJobResponse
-  | SuccessJobResponse;
+  | SuccessJobResponse
+  | UnknownJobResponse;
 
 /**
  * Status response from the job endpoint, with parameters to retry the job if it fails.