Upon opening a title block, an unhandled exception error appears
Issue:
Upon using the 'Insert Title Block' command, the following unhandled exception error displays: 
Solution:
Open the template (.dwt) file from the templates folder.
Ensure that there are no hidden entities within the file. Only the Title Block and Border blocks should be available within the template file.
You can check for hidden objects by pressing the ctrl+A and then PR(properties). Check if there is any additional object listed in properties.
To remove the invisible object from the template,
1. Type E(erase) then Enter.
2. Type all (to select all objects from the temp).
3. Press Shift key and select Border and Title block to deselect the selected object.
4. Press Enter to execute the command.
Once the additional items are removed from the template, overwrite the template and try again.
Additionally, a fix for this issue was provided within Hotfix 04 for HyDraw CAD 2022. It can be downloaded from our website at the following location: Service Packs HyDraw | Circuit Design software with self contained 2D CAD engine, HyDraw CAD from VEST, Inc. (vestusa.com)
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