Merge remote-tracking branch 'origin/chore_release-pd-8.5.6' into HEAD

Author: jerader

protocol-designer/release-notes.md

@@ -8,6 +8,12 @@ By using Opentrons Protocol Designer, you agree to the Opentrons End-User Licens
 
 ---
 
+## Opentrons Protocol Designer Changes in 8.5.6
+
+**Welcome to Protocol Designer 8.5.6!**
+
+This hotfix release addresses a bug when dispensing into a trash bin or waste chute.
+
 ## Opentrons Protocol Designer Changes in 8.5.5
 
 **Welcome to Protocol Designer 8.5.5!**

protocol-designer/src/pages/Designer/ProtocolSteps/StepForm/StepTools/MoveLiquidTools/SecondStepsMoveLiquidTools.tsx

@@ -168,8 +168,9 @@ export const SecondStepsMoveLiquidTools = ({
     ]
   )
   const labwareId = formData[`${tab}_labware`]
+  const shouldCheckLabwareDef = tab === 'aspirate' || !isDestinationTrash
   // The getMinXYDimension() call below is crashing quite often, but I'm not sure why
-  if (!labwareEntities[labwareId]?.def) {
+  if (shouldCheckLabwareDef && !labwareEntities[labwareId]?.def) {
     throw new Error(
       `missing ${tab}_labware def for ${labwareId}, ` +
         `in labwareEntities: ${!!labwareEntities[labwareId]}`