I found an alternative solution using GIMP - a free photo editor. The option is found in the file menu - "open as layers" which enabled me to open all 130 files as layers; but I had to manually change the blend mode to lighten on all.
Here's the results of my test creating star trails with a bridge camera. I used the built in intervalometer set for 7 sec intervals of 3.2 second exposures.
PSE 18, On1 Photo RAW 19, Image Composite Editor, Windows 10