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.
This is a bug
Release : 12.3
Component : AUTOMATION ENGINE
No fix available.
This will be fixed in a future version of the product