Permission problem

To Whom It May Concern, Hi. Of course, let me first say I love Textastic. I am using Textastic 10.6.4 on iOS 18.5 on an iPhone 16e. When I upgraded to the iPhone 16e, I began having a problem importing files from the OneDrive app. The error message is 'You don't have permission to save the file "traveling_modern.txt" in the folder "Documents".' The problem does not occur with files downloaded from the OneDrive web browser interface. Sincerely, Dante Picchioni, Silver Spring, Maryland, United States of America