fix(RTStruct): RTSTRUCT contours rendered on first slice for multi-frame images without IPP (#5811)

Fix RTSTRUCT contours rendered on first slice for multi-frame images without IPP

platform/core/src/utils/combineFrameInstance.ts

@@ -32,7 +32,7 @@ const combineFrameInstance = (frame, instance) => {
 
   if (
     (PerFrameFunctionalGroupsSequence && SharedFunctionalGroupsSequence) ||
-    hasDetectorButMissingSpatialInfo
+    hasDetectorButMissingSpatialInfo || NumberOfFrames > 1
   ) {
     // this is to fix NM multiframe datasets with position and orientation
     // information inside DetectorInformationSequence