Run in Batch Error: Unable to load image from URL string due to '{param} in input form must be a file' error

[petaxa]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

In WorkFlow, when using the "Run in batch" feature to load image files from a URL, an error notification appears stating {param} in input form must be a file.
It appears that with the "Run in Once" and "Test Run" features, images are retrieved from a URL string before execution occurs. Shouldn't the same process be applied when receiving URL strings from a CSV file in the "Run in batch" mode?
I wasn't sure if I should open an issue for this behavior, and because I was unable to reproduce it on the local server due to another strange problem, I'd like to deepen my understanding through discussion.

2. Additional context or comments

Below are the steps to reproduce:

1. In the "INPUT FIELD" of the "START" block, add a variable with the following settings: FIELD TYPE: Single File, Support File Types: Image, Upload File Types: URL (or Both).
   
2. Add an "END" block to ensure that the workflow functions correctly.
3. Publish the workflow.
4. From the "Batch Run App", select "Run Batch" and execute using a CSV file that properly contains a URL.
5. A warning toast appears stating "{param} in input form must be a file".
   

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I don't have enough details to tell if it's exactly the same behavior, but it seems to be closely related to #4557.