Hi @d_keith,

I would kindly ask you to check our Support Procedures, namely the "How To Ask Questions" paragraph:

Singular Question: The initial posting of a support topic must contain a singular question. Do not ask ten things at once, that makes it extremely hard to answer topics. Break up your questions into multiple topics.

Here you effectively have 4 different questions about Asset Browser, and these are candidates for 4 different threads on the forum. In your further postings please try to follow the aforementioned rules.

Regarding your questions:

Should I be able to mount a directory and have it auto-create a DB?

Mounting database is effectively executing the AssetDataBasesInterface.SetDatabases. It has nothing to do with creating database neither semantically, nor is this mentioned in the docu. If you need to create repository, please use maxon.AssetInterface.CreateRepositoryFromUrl(), it will scan the directory for being already a database and create proper dir structure if it's not.

Any idea why I need to re-try creating the Repo for it to work?

If you face any errors in the script, please always attach at least the error message! In this case I assume you receive the following error, when executing the maxon.AssetRepositoryTypes.AssetDatabase() for the first time after Cinema 4D started. Looks like a bug to me, I've created a bug report for that (ITEM#585831).

The error message:

Traceback (most recent call last): File "console", line 1, in <module> File "C:\Program Files\Maxon Cinema 4D 2025\resource\modules\python\libs\python311\maxon\interface.py", line 5049, in __call__ self._cachedObj.R = _maxon_mapping.GetAssociatedDataType(dt) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Exception: unable to find datatype

As a workaround you can just execute the following line first in your main():

maxon.AssetRepositoryTypes.AssetDatabase() ... about multiple DBs ...

You're giving your databases unique IDs with the line repo_id = maxon.AssetInterface.MakeUuid(str(url), True). If you need them to be the same, just pick one instead, e.g. repo_id = maxon.Id('net.maxon.sdk.cool.things.repo')

... revealing assets doesn't work...

I've created a bug report for that, as it looks like a bug with refreshing in the Asset Browser. As a workaround you can reload databases and reopen the AB before reveling your assets, e.g.:

def RepenAssetBrowser(): CID_ASSET_BROWSER = 1054225 # Close the Asset Browser if it's alredy opened if c4d.IsCommandChecked(CID_ASSET_BROWSER): c4d.CallCommand(CID_ASSET_BROWSER) # Open again c4d.CallCommand(CID_ASSET_BROWSER) def main(): # ... # assets = [] # ... # assets.append(asset) # ... maxon.AssetDataBasesInterface.ReloadAssetRepositories(True) RepenAssetBrowser() maxon.AssetManagerInterface.RevealAsset(assets)

Cheers,
Ilia

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