I have my project on the main server before the update it worked without problems, after updating the companion apk everything appears. I also tried to do it on a beta server but it doesn’t matter.
I Know, it’s working in new project i create but, in existing project as you can see in picture its appearing in grey color and not visible after building and there is also error in firebase after recent update in Niotron.
Try this
Go to Application settings/ project settings >> then click theme & designing >> and change the app theme from Light to Dark or Dark to Light. The issue might be solved.