Hey @harmonycoffeeroaster - this was a data issue that happened to a few people using RT3. You can fix it by opening the Terminal application and running rm -rf ~/Library/Application Support/RoastTime and rm -rf ~/Library/Application Support/roastime which clears out all the files, then installing RT3 or RT4 (recommended).
Hey @harmonycoffeeroaster, I’m following up to see if Matthew’s recommended suggestion fixed this for you. I’d also like to ask where did you find the download link for RoasTime v4? Did you also see a white screen for RT v4?