Projects plug-in shows with horizontal scroll bar centred

With v23.10 on opening EmEditor the projects plug-in shows with the horizontal scroll bar centred. The plug-in is set to a sufficient width to display the tree with filenames but because the horizontal scroll bar is centred it is necessary to move it to the left to see all items. By trial and error I have found that this behaviour occurs at startup when the width of the plug is set below the width required to show all items in the full path view. That is, the horizontal scroll bar seems to be centred at startup whenever the width of the plug-in is below the width required to see all items in full path view even when the view is set to filenames or relative path only.