Exporting parts to capture library not working as expected

I am sure some variant of this question has been asked but I don't see anything quite applicable when searching the forum. I have been using OrCAD PSpice for like 15 years on and off again and I swear the process to import models, associate them with a symbol and proceed to use them in a simulation has never been improved. 

We only use OrCAD for the PSpice functionality and do not create boards, etc. 

What I'd really like to understand is how to replicate model libraries and capture libraries similar to the pre-packaged ones included at install (multiple models and parts per library).

Here are the steps I would think should work (but don't). 

1. Open PSpice Model Editor and create a new blank library (e.g., BJTS.lib)

2. Import new model using Model -> Import and select whatever model downloaded from manufacturer, etc

3. Export to Capture library using File -> Export to Capture Part Library and associate part with a symbol

4. In Capture, add new BJTS.OLB library, choose part and add to simulation

5. Add the BJTS.lib as an include file and simulate

This works until I try to add another model. One would think you just open the model library, import new model, then re-export to capture library. Update design cache if needed or delete the capture library and re-add it. However, the only capture part ever available is the very first one I added. There are no errors during the process and when I export to capture library after adding a new model, I see all the parts in the associate symbol dialogue box. They are associated with symbols, and the event logger says everything passed with zero errors or warnings. But still, only one part in the capture library. If I repeat the process, it says there are already symbols associated with the parts. So again, it seems to be working but in Capture there is only one part shown in the olb. 

I really don't understand what I am doing wrong here. I can create an individual library for each part and that works but I'd really like to make an all-in-one library for various part types that can be shared with colleagues. 

Any advice or corrections would be greatly appreciated. Thanks!