[MC-87997] Execute Command works not as intended

If i type in this Command to give every ArmorStand(CAS) a score when they succesfully do a command it only saves it in the ArmorStand data that is the nearest to the command bock which is doing the execute command.

execute @e[name=CAS,type=ArmorStand] ~ ~ ~ stats entity @e[name=CAS,c=1] set SuccessCount @e[name=CAS,c=1] Success

i want to to customcrafting and my commands are the following:

scoreboard players set @e[name=CAS] Success 0

execute @e[name=CAS] ~ ~ ~ testforblock ~ ~ ~ minecraft:dropper -1 {Items:[{Slot:0b,id:"minecraft:sandstone",Count:1b}]}

execute @e[name=CAS,type=ArmorStand] ~ ~ ~ stats entity @e[name=CAS,c=1] set SuccessCount @e[name=CAS,c=1] Success

execute @e[score_Success_min=1] ~ ~ ~ say Heyo1

execute @e[name=CAS,score_Success_min=1] ~ ~ ~ blockdata ~ ~ ~ {Items:[{Slot:0b,id:"minecraft:air",Count:1b},{Slot:1b,id:"minecraft:air",Count:1b},{Slot:2b,id:"minecraft:air",Count:1b},{Slot:3b,id:"minecraft:air",Count:1b},{Slot:4b,id:"minecraft:air",Count:1b},{Slot:5b,id:"minecraft:air",Count:1b},{Slot:6b,id:"minecraft:air",Count:1b},{Slot:7b,id:"minecraft:air",Count:1b},{Slot:8b,id:"minecraft:air",Count:1b}]}

it just says Heyo1 for testing reasons.

If you wanna see how the command blocks are built look at the photo.

thank you if you can help me!