Hello,

We are using custom preflight droplets with Acrobat XI to perform batch/automated conversion. We are opting to upgrade to Acrobat 2020.
When creating preflight droplets, there is an option to select an error folder and create an error report in the error folder with specific formats (PDF, XML, Text) on any preflight error.
For our case, we are using Text format for the error report as it is less verbose (the preflight rules are not listed unlike XML) and easily extractable and logged in a log file (unlike PDF).

However in Acrobat Pro 2020, it seems that there is a bug in the error report using Text report (no issues in PDF report and XML report), where the error report was not being created. We tried the success Text report and the success report was being created in the success folder. We tried to switch the error and success folders, in the case the error was in the folders, but the success text report is being created properly. We also checked the display a summary PDF option in order to know the exact error report path which is displayed in summary PDF and it is correct. We tried the error PDF and XML reports and they were created.
We tried replicating the issue using Acrobat built-in preflight profile to see if the issue was in our custom preflight profile but we could also replicate the issue using the Acrobat built-in preflight profile using different files.

Can anyone confirm officially if this is a bug for Acrobat Pro 2020?

Steps to reproduce the issue
1. Create a preflight droplet for the Acrobat built-in "Convert to PDF/A-1a" preflight profile
(Open Acrobat > Tools > Print Production > Preflight > Options > Create Droplet > PDF Standards | Convert to PDF/A-1a)
2. Under "on error" check "Create report and save in error folder", and select "Text report" in the "Settings".
3. Click on "Error folder..." and select the error folder.
4. Check the last option to "Display a summary PDF ..." so that the results and error report path will be displayed.
5. Click on "Save" to create the preflight droplet .exe file.
6. Get a PDF sample which is guaranteed to fail for a PDF/A-1a conversion (e.g. PDF/A-1b sample without mark info / structure info https://tcpdf.org/files/examples/example_065.pdf) and simply drag and drop it on the preflight droplet icon to execute the preflight droplet for the file.

Environment (OS, other related application versions, etc.)
Windows Server 2012 R2 Standard, Acrobat Pro 2020 Release (Classic) | Version 2020.004.30017

Expected Result:
The text error report (with .txt extension) should be created.

Observed Result:
The text error report (with .txt extension) is not created.