diff --git a/src/MAT_subsys.jl b/src/MAT_subsys.jl
index 906c480..f70b23e 100644
--- a/src/MAT_subsys.jl
+++ b/src/MAT_subsys.jl
@@ -302,10 +302,13 @@ end
 
 function get_dynamic_properties(subsys::Subsystem, dep_id::UInt32)
 
-    if length(subsys.dynprop_metadata) == 0
+    if dep_id == UInt32(0)
         return Dict{String,Any}()
     end
 
+    # dynprops metadata is stored in format
+    # [(nprops, prop_obj_id_1, ..., prop_obj_id_n), ...] for each dep_id
+
     offset = 1
     while dep_id > 0
         nprops = subsys.dynprop_metadata[offset]
@@ -318,7 +321,7 @@ function get_dynamic_properties(subsys::Subsystem, dep_id::UInt32)
     offset += 1
     dyn_prop_obj_ids = subsys.dynprop_metadata[offset:(offset + ndynprops - 1)]
 
-    if dyn_prop_obj_ids == UInt32[]
+    if length(dyn_prop_obj_ids) == 0
         return Dict{String,Any}()
     end
     dyn_prop_map = Dict{String,Any}()
@@ -338,7 +341,7 @@ function get_properties(subsys::Subsystem, object_id::UInt32)
         return Dict{String,Any}()
     end
 
-    class_id, _, _, saveobj_id, normobj_id, _ = get_object_metadata(subsys, object_id)
+    class_id, _, _, saveobj_id, normobj_id, dep_id = get_object_metadata(subsys, object_id)
     if saveobj_id != 0
         saveobj_ret_type = true
         obj_type_id = saveobj_id
@@ -349,7 +352,7 @@ function get_properties(subsys::Subsystem, object_id::UInt32)
 
     defaults = get_default_properties(subsys, class_id)
     prop_map = merge(defaults, get_saved_properties(subsys, obj_type_id, saveobj_ret_type))
-    dyn_props = get_dynamic_properties(subsys, object_id)
+    dyn_props = get_dynamic_properties(subsys, dep_id)
     merge!(prop_map, dyn_props)
     return prop_map
 end
diff --git a/src/MAT_types.jl b/src/MAT_types.jl
index c7c5720..e8fdfd3 100644
--- a/src/MAT_types.jl
+++ b/src/MAT_types.jl
@@ -434,7 +434,7 @@ end
 ms_to_datetime(ms::Complex) = ms_to_datetime(real(ms))
 function ms_to_datetime(ms::Real)
     s, ms_rem = fldmod(ms, 1_000)  # whole seconds and remainder milliseconds
-    return DateTime(1970, 1, 1) + Second(s) + Millisecond(ms_rem)
+    return DateTime(1970, 1, 1) + Second(s) + Millisecond(round(Int, ms_rem))
 end
 
 function from_duration(obj::MatlabOpaque)