My app was working on my android phone up until recently. Now SendMessage is no populating the text message into the text app on my phone. It is communicating the correct phone number to send the text to ... just not the message itself.
I created a simple Test app. When the Send button is clicked it sets the phone number and message from a text block and then calls SendMessage. In the phones Text app, it opens the text tool to the correct phone number but does not fill in the text.
Please let us know, which Android device and which Android version you are using for your tests. Did you try another device?
It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.
To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.