Erase for assigment style min & max height for this redactor <div>:
<div class="redactor-editor redactor-linebreaks redactor-placeholder" contenteditable="true" dir="ltr" style="min-height: 75px; max-height: 75px;" placeholder="Motivo para la asignación (opcional)" spellcheck="true" lang="es-ES"></div>
Replace it with and style="height: 1250 px" in order to have more space to see who i'm writing.
Thank you very much!
