Problem with STL File in Rectangular Geomety for Keyframe Data Implementation (Fluctuating Wall Velocity)

Dear MFIX Community,

I have been in the process of modeling a linearly vibrating system (with no-slip floor and X-cyclic boundary conditions) with rectangular geometry by using the keyframe approach specified in the rotating_drum_3d simulation. I know that this process requires using an STL file to model dynamic boundary conditions. However, I am running into an error titled “Invalid IC Volume” that was referenced in an earlier post. Invalid IC region volume
Does anybody know a way to resolve this issue and is there a possible work around for implementing key frame data approach without specifying STL geometry?

Best,

Tanner