Export in Lightroom recess if a New Folder has been created

When exporting images from Lightroom Classic (On Mac).  The process freezes if you have created a new folder during the export procedure.

The folder is created and you are returned to the previous dialogue box but the export button does not work and you cannot escape from the dialogue box.  The only way is to Force quit the program.

N.B. This only happens if a new folder has beencreated during the export procedure.