I am running a project in Mendix 7.23.5 with Calypso and VS Code, all are installed on Windows. I followed these instructions https://docs.mendix.com/howto/front-end/calypso. In Calypso, I set the hostname to localhost and the Port to 8080, and I am running the app locally from Mendix Studio Pro. When I start Calypso, it opens the app in the browser at http://localhost:1111/ . I am having the same issue that Wouter describes in this Forum Question: https://forum.mendix.com/link/questions/98872 . But he found a solution that worked on Mac. The styling changes that I make in VS Code are not changing in the app in the browser on the fly even though Calypso's Console reports: File styles\sass\lib\project\_ourfilename.scss has changed. Injected _ourfilename.scss in the browser. I added an Inbound Rule in Windows Defender for Calypso, but that did not solve the issue. I also tried the Clean Deployment Directory suggestion to Wouter’s Question, but that did not solve the issue either. I have not found any other recommendations online. Does anyone have any other suggestions?
Just checking: are you sure that Calypso works with Mx7.x projects? I can only find Calypso in the official documentation for Mendix 8 projects.
Does the CSS change? Check this in the project/theme. Also, check it in the project/deployment/ directory and check it in the browser’s inspector.
As better (imho) alternative you can add the VS code extension ‘live SASS compiler’ and follow my comment in this question’s answer. No need for another port or tool :-)