Not able to import messages if the terminal and sub addresses are same for two messages which are differ by Direction (Rx/Tx)

[KishorBasavaraju-NI]

Describe the bug
Not able to import messages if the terminal and sub addresses are same for two messages which are differ by Direction (Rx/Tx).

To Reproduce
Steps to reproduce the behavior:

1. Install the AIM MIL-STD-1553 custom device 24.0.0.
2. Download the attached file Parameters_Same RT_SA.xml
3. Open the file in a text editor and observe that there are Rx and Tx messages configured with the same RT address and sub address. 4. For example, BC to RT3 (AS01) and RT3 to BC (SA01) have the same terminal address (3) and subaddress (1).
4. Create a new VeriStand SDF and add the AIM MIL-STD-1553 custom device.
5. In the Configuration Files section, select the Parameters_Same RT_SA.xml.

Actual Behavior
You will see that each RT shows up, but only the RT to BC message words is added to the system definition.
AIM message subaddress.png

Expected behavior
Both messages should have been imported