diff --git a/gapil/resolver/inference.go b/gapil/resolver/inference.go
index 87eb146fb5..bcdc8c4c11 100644
--- a/gapil/resolver/inference.go
+++ b/gapil/resolver/inference.go
@@ -118,6 +118,12 @@ func lhsToObserved(rv *resolver, lhs semantic.Node) semantic.Expression {
 			return nil
 		}
 		return &semantic.MapIndex{Map: o, Index: lhs.Index, Type: lhs.Type}
+	case *semantic.Cast:
+		o := lhsToObserved(rv, lhs.Object)
+		if o == nil {
+			return nil
+		}
+		return &semantic.Cast{Object: lhs.Object, Type: lhs.Type}
 	case *semantic.Parameter:
 		if f := rv.scope.function; f != nil && f.Subroutine && lhs == f.Return {
 			rv.errorf(lhs, "unknowns cannot be used to infer return values in subroutines")
diff --git a/gapis/api/vulkan/vulkan.api b/gapis/api/vulkan/vulkan.api
index 69ad6b0c2a..fc8329f0dd 100644
--- a/gapis/api/vulkan/vulkan.api
+++ b/gapis/api/vulkan/vulkan.api
@@ -3191,8 +3191,17 @@ cmd void vkGetImageMemoryRequirements2KHR(
     VkMemoryRequirements2KHR*                pMemoryRequirements) {
   if !(device in Devices) { vkErrorInvalidDevice(device) }
   info := pInfo[0]
-  // TODO: handle pNext for 'info'
+  memReqs := pMemoryRequirements[0]
+  if memReqs.pNext != null {
+    nPNext := numberOfPNext(as!const void*(memReqs.pNext))
+    next := MutableVoidPtr(as!void*(memReqs.pNext))
+    for i in (0 .. nPNext) {
+      _ = as!const VkStructureType*(next.Ptr)[0]
+      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0].PNext
+    }
+  }
 
+  // TODO: handle pNext for 'info'
   fence
 
   if pMemoryRequirements == null { vkErrorNullPointer("VkMemoryRequirements2KHR") }
@@ -3208,17 +3217,18 @@ cmd void vkGetImageMemoryRequirements2KHR(
     numPNext := numberOfPNext(as!const void*(memReq.pNext))
     next := MutableVoidPtr(as!void*(memReq.pNext))
     for i in (0 .. numPNext) {
-      sType := as!const VkStructureType*(next.Ptr)[0:1][0]
+      sType := as!const VkStructureType*(next.Ptr)[0]
       switch sType {
         case VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR: {
-          ext := as!VkMemoryDedicatedRequirementsKHR*(next.Ptr)[0:1][0]
+          ext := as!VkMemoryDedicatedRequirementsKHR(?)
           Images[info.image].DedicatedRequirementsKHR = new!DedicatedRequirementsKHR(
             PrefersDedicatedAllocation:   ext.prefersDedicatedAllocation,
             RequiresDedicatedAllocation:  ext.requiresDedicatedAllocation,
           )
+          as!VkMemoryDedicatedRequirementsKHR*(next.Ptr)[0] = ext
         }
       }
-      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0:1][0].PNext
+      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0].PNext
     }
   }
 }
@@ -3233,6 +3243,16 @@ cmd void vkGetBufferMemoryRequirements2KHR(
   info := pInfo[0]
   // TODO: handle pNext
 
+  memReqs := pMemoryRequirements[0]
+  if memReqs.pNext != null {
+    nPNext := numberOfPNext(as!const void*(memReqs.pNext))
+    next := MutableVoidPtr(as!void*(memReqs.pNext))
+    for i in (0 .. nPNext) {
+      _ = as!const VkStructureType*(next.Ptr)[0]
+      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0].PNext
+    }
+  }
+
   fence
 
   if pMemoryRequirements == null { vkErrorNullPointer("VkMemoryRequirements2KHR") }
@@ -3248,17 +3268,18 @@ cmd void vkGetBufferMemoryRequirements2KHR(
     numPNext := numberOfPNext(as!const void*(memReq.pNext))
     next := MutableVoidPtr(as!void*(memReq.pNext))
     for i in (0 .. numPNext) {
-      sType := as!const VkStructureType*(next.Ptr)[0:1][0]
+      sType := as!const VkStructureType*(next.Ptr)[0]
       switch sType {
         case VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR: {
-          ext := as!VkMemoryDedicatedRequirementsKHR*(next.Ptr)[0:1][0]
+          ext := as!VkMemoryDedicatedRequirementsKHR(?)
           Buffers[info.buffer].DedicatedRequirementsKHR = new!DedicatedRequirementsKHR(
             PrefersDedicatedAllocation:   ext.prefersDedicatedAllocation,
             RequiresDedicatedAllocation:  ext.requiresDedicatedAllocation,
           )
+          as!VkMemoryDedicatedRequirementsKHR*(next.Ptr)[0] = ext
         }
       }
-      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0:1][0].PNext
+      next.Ptr = as!VulkanStructHeader*(next.Ptr)[0].PNext
     }
   }
 }