Compatibility issue with PowerBuilder

Does the SmartCrawl plugin not work correctly when I use Powerbuilder to create my blog post? If I use the basic editor to create my blog post, it shows the text correctly in the SmartCrawl Preview.

If I use powerbuilder to build my blog post, when I get a post, and check the SmartCrawl preview, I could see the preview as:

When switch to a default WP Editor, it works fine: