AWS Datasync when executing a task and not finding changes to make, counts and charges Requests on an S3 Bucket when performing a verified on the directory / where N files are located ?????

Dear, a task was created in Datasync which transferred 8 files within a directory and subdirectories. My query is when reviewing the logs of the Datasync task, I observe that different requests are generated (created, transferred, verified). When executing a new Datasync task where no transfer was made because no new changes were detected, but when reviewing the task log again, I observed that the request was made on the root (verified directory /). My question is, when Datasync does not find a change to make, it makes N requests on the total number of files and directories that are already updated. Example: if I have 15,000 files updated on a bucket, and when executing a task again that does not make changes, will AWS still charge me and count for listing all the files that have already been transferred? I attach images where I only have 22 objects including directories, files and subdirectories, where 43 tasks were executed, of which 40 did not transfer files (only verified directory /), which, checking my cost manager, made about 1840 Requests (Put, Copy ,Post or List Request) to Amazon S3