Keyboard disappears on Android Tablet

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1

Steps to reproduce

I’m using Android Obsidian App on my Boox Note Air 3C Tablet.
When I want to write something in a note, the keyboard that appears in the bottom part of the screen, appears for a second then disappears. I can’t write anything.

Did you follow the troubleshooting guide? [Y/N] Yes

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Actual result

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2

Please follow and complete the bug report template. It cuts down on the back and forth. Thanks.