Convert image to Base64 and vice versa

Hello everyone!
sorry for my bad english.
This is the first time in this forum.
I have a base64 image and conversion problem.
I use the extension “com.ghostfox.SimpleBase64.aix”
after pressing the “Decode” button, I cannot copy the image of the block “image1” into the block “image2”.
Once the image is inserted into “Image1”, it can no longer be used in other blocks
this is the App Design

and these are the blocks.

can someone help me?

Thank you all

isn’t there anyone who can help me?