Before the update, this bug never happens
Steps to Reproduce :
Use Hacker Keyboard in Android
Go to Chat
Type Anything
Press Left/Right Arrow Keys
Attachments
Comments 10

Does MCPE-178574 Describe your issue.
Thank you for your report!
However, this issue is Invalid.
Issue is regarding external virtual keyboard. This tracker is for Minecraft-related issues only.
Quick Links:
📓 Bug Tracker Guidelines – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues) – 📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
However, this issue is Invalid.
Issue is regarding external virtual keyboard. This tracker is for Minecraft-related issues only.
Quick Links:
📓 Bug Tracker Guidelines – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues) – 📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
I believe this issue is incorrectly marked as invalid. I can use other Android virtual keyboards and have the same issue. It appears the Minecraft UI is capturing the arrow key inputs to move between UI elements even when in a text editing context.
Combined with MCPE-174360, this means some edits are impossible because the insertion caret cannot be sufficiently controlled.
I believe this issue is incorrectly marked as invalid. I can use other Android virtual keyboards and have the same issue. It appears the Minecraft UI is capturing the arrow key inputs to move between UI elements even when in a text editing context.
Combined with MCPE-174360, this means some edits are impossible because the insertion caret cannot be sufficiently controlled.