In v12.3 the dialog window resulting from BEGINREAD-ENDREAD with the commands :PRINT and :READ is not well formatted.
The number of columns is limited to ~45 and ~20 respectively and the F-option (monospaced) of BEGINREAD is not taken into account.
Release : 12.3
Component : AUTOMATION ENGINE
This is a bug
Update to a fix version listed below or a newer version if available.
Fix version: Automation Engine 21.0.4 - Available