title: Android app button text disappears after months of working fine
body: <p>I have a field service reporting android app that I created in Oracle MAF. it has been in use for almost a year now with no UI issues, Over the last few days, I have been getting reports from our end users that the button text is disappearing. so - anywhere where there is a button with text inside it, the text is not visible. same font is being used elsewhere in the app with no issues. All the end users are running this on the Samsung Tab A 8.1. The last android update for the device was a few weeks ago. The problem is slowly propagating, like only 4-5 users a day are reporting that they go to use the app and the text is gone. luckily they are used to the app and know what all the buttons do, but I have to eventually fix it. I can't get any straight answers from Our IT department or Samsung as to why it is happening like this, and the update didn't seem to have anything in it that could do this. A factory reset fixes it for a day or two, and then the issue comes back.</p>
  
  <p><a href="https://i.stack.imgur.com/OGKQG.png" rel="nofollow noreferrer">What it is supposed to look like</a></p>
  
  <p><a href="https://i.stack.imgur.com/leDi5.png" rel="nofollow noreferrer">Example of missing text</a></p>
  
  <p>Like I said, this has been working fine for a while now. I'm mainly looking to see if anyone is aware of an Android update that would cause this, or if there was anything in the Samsung security update that would do it.</p>