Bug Batchmode hangs forever when calling external process in PostProcessBuild

This worked without issue for years, seems to be broken now from 2022.2.19f1 and onwards. Anyone encounter issues from this or find workarounds?

Here's an example with verpatch; call never returns: (works fine in 2022.2.18f1-)

Code (CSharp):

1.  
2. // called via [UnityEditor.Callbacks.PostProcessBuild]
3. string bundleVersion = PlayerSettings.bundleVersion;
4.  
5. string commandLine = string.Format("\"{0}\" \"{1}\" /high /s CompanyName \"Foobar\" /s ProductName {2} /s ProductVersion \"{1}\"", buildLocation, bundleVersion, product);
6.  
7. Debug.Log($"Verpatch: {commandLine}");
8.  
9. var result = System.Diagnostics.Process.Start(verPatchPath, commandLine);                    
10.