Assertion error - line 241

[John Olin]

When i try to add an insert (eg Expand, EQ, Reverb, etc) to a track, I get the following assertion error:

""

I'm using Pro Tools 12.4.0

My computer is a Dell OptiPlex 7040 i7-6700 with 16GB ram. My interface is a Focusrite Scarlett 6i6 2nd Gen. To test the program, I just have one track and I'm working off the c:\ drive (I have an external USB 3.0 drive). I don't think the hardware is the problem.

I believe the problem has something to do with my domain environment. I use roaming profiles. The software was installed while I was logged into my domain (my domain account is in the local admin group). I still get errors when I use my local account (which is also in the admin group).

I really want this to work in a network environment as I need to restrict most the users. It would be nice if a limited user could login & use the software.