I was encountering the same problems. Now works for me!
I figured it was something to do with the triggering. Made a local copy off blueprint. Now works after commenting out attribute: action in trigger:
attribute: action
Can comment or delete line in trigger portion of blueprint.
trigger:
- platform: state
entity_id: !input samsung_smartthings_button
# attribute: action
found referenced at Zigbee2MQTT - Tuya 4-button Scene Switch (TS0044) - #54 by just.bondarenko