If the Garmin Connect application does not show any data from the watch, then it most likely means that there is no connection between those two. You'll need to fix it first. Have a look at this troubleshooting guide.
Daily steps are always reset at midnight, that's the normal behaviour. If you want to see the steps done in the previous day, go to the Activities screen, scroll down and tap the Steps button - there are daily weekly, and yearly reports.
They used to show up there, but they no longer show up. Everything is blank, but the daily weight. Not sure why the weight is the only item showing up.
They used to show up there, but they no longer show up. Everything is blank, but the daily weight. Not sure why the weight is the only item showing up.
As I wrote, at midnight steps are reset, so new steps will reappear only when you do some in the new day. Unless you removed the Steps pane incidentally. In that case you can enable it by scrolling down on the main screen, and tapping the button Edit My Day, but you wrote you did that already.
Everything is blank, but the daily weight. Not sure why the weight is the only item showing up.
Can you post a screenshot? Also try forcing the Garmin Connect app to stop, and restarting it. You can force app to stop by swiping the smaller preview in task manager up. If you are not familiar with it, just restart the phone.
