diff --git a/app/lib/world/thang_state.coffee b/app/lib/world/thang_state.coffee
index c4a1a540b..330e75892 100644
--- a/app/lib/world/thang_state.coffee
+++ b/app/lib/world/thang_state.coffee
@@ -30,6 +30,7 @@ module.exports = class ThangState
       if type is 'Vector'
         @props.push value?.copy()  # could try storing [x, y, z] or {x, y, z} here instead if this is expensive
       else if type is 'object' or type is 'array'
+        console.log 'storing', prop, 'as', value if prop is 'myTiles'
         @props.push clone(value, true)
       else
         @props.push value
@@ -144,7 +145,7 @@ module.exports = class ThangState
           # We make sure the array keys won't collide with any string keys by using some unprintable characters.
           stringPieces = ['\x1D']  # Group Separator
           for element in value
-            if element and element.isThang
+            if element and element.id  # Was checking element.isThang, but we can't store non-strings anyway
               element = element.id
             stringPieces.push element, '\x1E'  # Record Separator(s)
           value = stringPieces.join('')
diff --git a/app/views/play/level/tome/spell_view.coffee b/app/views/play/level/tome/spell_view.coffee
index 745e3c9fe..f9f43da33 100644
--- a/app/views/play/level/tome/spell_view.coffee
+++ b/app/views/play/level/tome/spell_view.coffee
@@ -368,7 +368,7 @@ module.exports = class SpellView extends View
       # Now that that's figured out, perform the update.
       # The web worker Aether won't track state, so don't have to worry about updating it
       finishUpdatingAether = (aether) =>
-        @displayAether aether
+        @displayAether aether, codeIsAsCast
         @lastUpdatedAetherSpellThang = @spellThang
         @guessWhetherFinished aether if fromCodeChange
 
@@ -396,10 +396,9 @@ module.exports = class SpellView extends View
     @aceSession.setAnnotations []
     @highlightCurrentLine {}  # This'll remove all highlights
 
-  displayAether: (aether) ->
+  displayAether: (aether, isCast=false) ->
     @displayedAether = aether
-    isCast = not _.isEmpty(aether.metrics) or _.some aether.problems.errors, {type: 'runtime'}
-    isCast = isCast or @spell.language isnt 'javascript'  # Since we don't have linting for other languages
+    isCast = isCast or not _.isEmpty(aether.metrics) or _.some aether.problems.errors, {type: 'runtime'}
     problem.destroy() for problem in @problems  # Just in case another problem was added since clearAetherDisplay() ran.
     @problems = []
     annotations = []