When I open your file I get the same result, and when I change the tool to another 90° V-bit that exists in the default tool dababase, the preview is ok.
Can you post a screenshot of your tool’s parameters, or better yet your tool file ( Help => About => Open data directory, go inside “CarbideCreate” then “tools”, get the csv file there, zip it and post it here ?)
I suspect CC does not like one of the parameters in your custom tool.
I can’t spot anything obvious in the tool def.
I tried re-creating a custom V tool with the same specs, and it works.
Can you try deleting and re-creating first the toolpath only, and then the tool ?
Sorry it’s getting late here, I’ll leave you in @WillAdams’s hands on this one
Thanks @Julien I suspect it is the tool, as I get the same results on other toolpaths in totally separate files. Odd that it is on both my 45 and 90, but not my 60.
Ill troubleshoot a bit more later this evening and let you know what I find.
It was the tool(s). I deleted/rebuilt them in the .csv, and everything shows fine now.
Thanks for double checking everything for me. Not sure why those two tools were not working. And now I know that when in doubt and after scratching my head, it is easy and quick enough to rebuild the tools from scratch and try again.