How to fix the trawl thing.
1) Download and install the latest Images2TGA from Shane's website.
2) Create the batch file using notepad or some other text editor. Notepad++, UltraEdit, Context, etc. will also work. Just don't use Word or Open Office.
Using PEV's own helpful document, I pasted this line in a text file and modified for my own use. The difference here is I need to close the Images2TGA window after running, but that's not a big deal. For some reason I could not get the application to work when the window closed afterwards. That might be a Windows 8/10 thing, but anyway it is what it is and works okay.
"C:\Program Files (x86)\PEVSoft\Images2TGA\Images2TGA.exe" -trawl "F:\TANE_DATA\editing\%1%"
Change the part in bold to match your own T:ANE data location. Remember to keep the quotes!
3) Save as a .cmd (command batch)
4) Open up your asset(s) for edit in Content Manager
5) Run the application as admin.
Note: If your data is located in C:\Users\{profile}\App Data\Local\N3V Games\TANE\Build xxxxx, you may need to unhide this directory first in order for the batch to work. Since I put my data on it's own drive away from the OS, I never dealt with that issue.