I have reached out to tascam and provided audio evidence of the issues to which they have said they are unaware of these kinds of artifacts. I also have given them a thorough breakdown of what ive done to eliminate this issue. I am awaiting a email back from their engineer department.
I appreciate all the help this forum has provided and I will continue to update if anything new pops up.
As a troubleshooting step, can you set the buffer in the driver to something ridiculously high like 2096 and see if the pops, screeches and clicks go away? In my personal experience I get some pops and clicks at 128 but they go completely away when I am at 256 or above. My current setting is 512