SDIRA - ?? prohibited transaction question

[Ira Bloomfield]

We have a multifamily investment where we invested in the LLC on with personal cash. I am a limited partner with no management of the asset. The investment is now in some trouble, and several of the investors are looking to "loan" some money to the LLC to help stabilize the asset. I would like to loan the money to the LLC from my solo 401k. The note could be between the LLC and the solo 401k. It will likely be repaid within several months. I am looking for guidance on whether or not this would be considered a prohibited transaction. I have been told it was "gray". I'm thinking is OK because I am not on the management team but looking for any input from others with experience. Thanks

Ira