Hint and keyboard button not working in section in the application

[Olamatto]

Expected behavior

The hint and keyboard button is meant to work in all sections, as long as it is being placed there.

Actual Behavior

While clicking on hint and keyboard, in some section of the application it does not work at all, such as the combination and permutation section.

How to reproduce

• Download and install the application
• Lunch the application
• Click on the menu on the top right side
• Scroll to the probability statistics category
• Select Combination
• Click on the hint and keyboard button

Discover that it is not working

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Application version: 3.4.0
Operating system: Android v7.0

Recording Of The Bug

https://youtu.be/8ES9NMj4Udg