Log in to your Autodesk Account and navigate to the Product Updates section. You can use filters to find "AutoCAD LT" and the specific "2019.1" version.
If you need to filter your selection so that you are only interacting with text (and not lines or circles), use the tool: Autodesk AutoCAD LT 2019.1 Update Only
You are looking for the specific 2019.1 update file (a "patch") to fix bugs or performance issues in an existing installation of AutoCAD LT 2019. Log in to your Autodesk Account and navigate
Check your : Type OPTIONS > User Preferences tab and ensure that "Keyboard entry except script" is selected under Priority for Coordinate Data Entry . Autodesk AutoCAD LT 2019.1 Update Only