It's possible to mistakenly drag text that was marked with the PC's mouse and hence "push" it to another place. Sometimes it will just be pushed to another place and sometimes it will jumble-up or mess existing text.
Is there a way to make sure text won't be dragged like this in
I ask since when working with program codes or scripts it's sometimes enough that one letter will be mistakenly dragged without noticing and all the program would stop working, and not always a debugger would find that root cause.
Settings > Preferences > Check "Lock (no drag and drop) doesn't help, even after restarting the program.