I'm trying to create an HDA, just leaerning for personal use, and it is now at version 1.4, with a dev prefix.
The problem I am having is that the parameters are all gone when I reopen the file.

Sometimes it works to switch the path from 1.4 to embedded and back to 1.4 and that sometimes re-populates the parameters but this is very inconsistent and really not what I would want.

I always do a save node type when I edit the parameters.

PS: I also have a lot of errors when starting Houdini because of this hda, and the only thing special I'm doing with it as far as I can tell is loading a handle from a python module.

I guess you might have added parms through the 'edit interface' button. For HDAs you need to uses 'edit type' and then go to the interface tab.

The difference is that the first method only adds parms to that specific instance of a node, the second method actually makes it part of the HDA asset.

Jonathan de Blok
I guess you might have added parms through the 'edit interface' button. For HDAs you need to uses 'edit type' and then go to the interface tab.

The difference is that the first method only adds parms to that specific instance of a node, the second method actually makes it part of the HDA asset.

Thanks!
I'm pretty sure I'm adding them via type properties though. One strange thing I am noticing is that sometimes when I close and reopen the file the definition appears as embedded. The frustrating part is I can't find a logic to it... if I do apparently random things with the hda or the file and warnings I sometimes get the parameters back and can continue to work... I would really like to for it to make more sense!