message: For any images that don't have an initial layout recorded, use GENERAL
  * This could happen if the image is created mid-frame and its layout isn't
  serialised out in the BeginCaptureFrame chunk, and prevents us from trying to
  use an image while it's UNDEFINED.
diff: @@ -1147,11 +1147,47 @@ bool WrappedVulkan::Serialise_BeginCaptureFrame(SerialiserType &ser)
  SERIALISE_CHECK_READ_ERRORS();
  - if(IsReplayingAndReading() && !imgBarriers.empty())
  + if(IsReplayingAndReading())
  {
  VkPipelineStageFlags src_stages = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
  VkPipelineStageFlags dest_stages = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
  + if(IsLoading(m_State))
  + {
  + // for the first load, ensure all images are in a non-undefined layout. Any images that don't
  + // have an initial layout to transition back into were likely created mid-frame so their state
  + // is expected to be transitioned from undefined in the capture itself.
  + for(auto it = m_ImageLayouts.begin(); it != m_ImageLayouts.end(); ++it)
  + {
  + for(auto stit = it->second.subresourceStates.begin();
  + stit != it->second.subresourceStates.end(); ++stit)
  + {
  + if(stit->newLayout == VK_IMAGE_LAYOUT_UNDEFINED &&
  + GetResourceManager()->HasCurrentResource(it->first))
  + {
  + VkImage img = GetResourceManager()->GetCurrentHandle<VkImage>(it->first);
  +
  + if(GetResID(img) != GetResourceManager()->GetOriginalID(GetResID(img)))
  + {
  + VkImageMemoryBarrier barrier = {};
  +
  + stit->newLayout = VK_IMAGE_LAYOUT_GENERAL;
  +
  + barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
  + barrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
  + barrier.newLayout = VK_IMAGE_LAYOUT_GENERAL;
  + barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
  + barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
  + barrier.image = Unwrap(img);
  + barrier.subresourceRange = stit->subresourceRange;
  +
  + imgBarriers.push_back(barrier);
  + }
  + }
  + }
  + }
  + }
  +
  if(!imgBarriers.empty())
  {
  for(size_t i = 0; i < imgBarriers.size(); i++)
  