Conversion Export to G Ads

Hello together,
we use the “Conversion Export” plugin to export Google Ads conversions to Google Ads. In the plugin settings, you can set the export time, for example, to export all conversions from the last three days. It works well.
However, why am I unable to export current conversions, specifically those from TODAY?
There’s a box next to it that says “Today will be always excluded.” Why is that the case?

Best regards