Reproduction steps:
1) Build scene "Escena" for android.
2) Run on a device
3) Enter some text into all text fields
4) Start clicking on UI arrows, for a while
--- When this issue is triggered text in the right column will change.
--- In the left column the same string will be duplicated over two rows (see attached video)

Note: This Exception arises way faster on android than in the editor.

Reproduced with: 5.3.4f1(~500click in editor), 5.4.0b11(only able to repro on android) 5.4.0b20
Does not reproduce with: 5.2.4f1 (11k clicks in the editor.)