MATLAB: Are the library blocks containing masked S-functions unable to propagate changes in Simulink libraries

Question

I have a library that contains links to blocks from individual libraries. When I make a change to the block in one of these individual libraries, the changes are not propagated to the interface library.

Answer 1

The custom blocks are not propagated to the interface library, because the custom blocks are masked S-functions. For a masked S-function block, in order for the port numbers to be captured in the libraries, you need to re-apply the S-function.

As a workaround, perform the following steps:

1. Unlock the library.

2. Right-click on the block and select the menu "Look under Mask"

2. Go to the S-function dialog, cut the S-function name.

3. Paste the S-function name and click Apply.