Tested in build 8529. Not sure if I was able to replicate the bug perceived.
There are two newer builds available but none mention any text display fixes that may help this case.
But just to make sure
In the settings, and in the settings tab at the top of the list, click advanced.
At the bottom there are some checkboxes to allow for different asset sizes. This helps organize your assets so you're not having 4x assets in a 2x only game. Choose the ones you want.
After that, in the Web, Mobile, and Desktop tabs, there are more checkboxes that you can choose from which enables different scales for your game. Enabling some of these can allow the 2x, 4x, etc versions of assets to load instead of pixel scaling up a 1x asset.
I was able to have nice 1x crisp text in a 2x game at the proper sizing.
If you are doing all that and you still have a problem, go ahead and write that bug report.