How to fixed thumbnail size for a folder path formats

Hey Leo, I use this script, and it's work fine for me but there is a problem also.
D:\Scan is my target folder where I want to set thumbnail size 384x384. I configured the script with D:\Scan and Show THUMBNAILSIZE=source,384. when I open D:\Scan then it's display in thumbnail in 384 as I configured. But When I click the GO UP Button to go D:\ then it's also display in thumbnail in 384. what I don't want. for your kind information before I installed this script the location D:\ display in thumbnail mode in default thumbnail size what was natural. But after install the script the thumbnail size become 384x384 from default size when I come back from D:\Scan to D:\ Drive. how to solve this problem Leo?