diff --git a/app/controllers/RelayRound.scala b/app/controllers/RelayRound.scala
index 955556a76702..152aabaf0097 100644
--- a/app/controllers/RelayRound.scala
+++ b/app/controllers/RelayRound.scala
@@ -114,7 +114,7 @@ final class RelayRound(
         json = doApiShow(id)
       )
 
-  def apiShow(ts: String, rs: String, id: RelayRoundId) = AnonOrScoped(_.Study.Read):
+  def apiShow(ts: String, rs: String, id: RelayRoundId) = AnonOrScoped(_.Study.Read, _.Web.Mobile):
     doApiShow(id)
 
   private def doApiShow(id: RelayRoundId)(using Context): Fu[Result] =
diff --git a/modules/web/src/main/CtrlErrors.scala b/modules/web/src/main/CtrlErrors.scala
index 2f6118be370c..66b6ced646e5 100644
--- a/modules/web/src/main/CtrlErrors.scala
+++ b/modules/web/src/main/CtrlErrors.scala
@@ -32,7 +32,7 @@ trait CtrlErrors extends ControllerHelpers:
         .mapValues: errors =>
           JsArray:
             errors.map: e =>
-              JsString(I18nKey(e.message).txt(e.args))
+              JsString(I18nKey(e.message).txt(e.args*))
         .toMap
     json.validate(jsonGlobalErrorRenamer).getOrElse(json)
 
diff --git a/ui/bits/src/bits.cropDialog.ts b/ui/bits/src/bits.cropDialog.ts
index ad3aaf3d140d..1aed230a3437 100644
--- a/ui/bits/src/bits.cropDialog.ts
+++ b/ui/bits/src/bits.cropDialog.ts
@@ -92,14 +92,14 @@ export async function initModule(o?: CropOpts) {
       maxWidth: opts.max?.pixels,
       maxHeight: opts.max?.pixels,
     });
-    const tryQuality = (quality = 0.9) => {
+    const tryQuality = (quality = 1) => {
       canvas.toBlob(
         blob => {
           if (blob && blob.size < (opts.max?.megabytes ?? 100) * 1024 * 1024) submit(blob);
           else if (blob && quality > 0.05) tryQuality(quality * 0.9);
           else submit(false, 'Rendering failed');
         },
-        'image/jpeg',
+        'image/png',
         quality,
       );
     };