The next step is to make a smaller project that reproduces the problem. Then you can share it, or figure out which part isn’t working.
You can review Requesting Help for other advice on getting help.
The biggest reason you should do this is because even from your code examples, we can’t reconstruct your project.
When I change my CSS the live reload works. But I don’t use pipes. I do recall others discussing thism though, so you might try creative searches trying to track this down. 