NavigationToolbar2Kivy don't working in Mobile

[JoseAnacletoJunior]

NavigationToolbar2Kivy content doesn't appear in android . In Android, actionbar appears but the actionprevious and actionbuttons (i.e. the actionbar appears without content) from NavigationToolbar2Kivy doesn't appear. In PC, running .py archive, the NavigationToolbar2Kivy works fine. Did you face that problem and get the solution guys?

PS: I'm using Kivymd to make this apk

[Rohan7503]

I have the same issue, but on PC. The NavigationToolbar2Kivy's actionbar appears but without any content. Could you tell me what versions of python, kivy, and kivy garden you used?