It may have happened to you that when you want to use the SharePoint “Create File” action in your flow in Power Automate, you receive an error message similar to the following :
To fix this problem, you need to go to the action setting and in “Content Transfer” section, switch Off the “Allow Chunking” option as follows :
1- Click the ellipses on the “Create File” action
2-Click on the Settings
3-Under Content Transfer, toggle Off “Allow Chunking”.
4- Click Done.
Hope it helps!