Input error when using AMP engine

[yaohuahuang41]

I am adding new inputs (xlsx format) to an existing workflow using AMP engine. I could see the input data in the preview but no data is available after running the workflow. I also tried the followings and obtained different results:

• Using different files as input: with AMP engine the existing workflow cannot read any additional input
• Turning off the AMP engine: the input tool works properly
• Using the same input files at a new Workflow: the input tool also works properly

Why is the AMP engine causing a bug with my existing workflow?

[apathetichell]

usually AMP is flagging an error/compatability issue somewhere else - so it's not finishing processing the input from your file. Is there a block until done on your canvas?

[yaohuahuang41]

i have block until done tool in my workflow but it's not connected to the input tools