I have a terrible problem, every time I try to draw something, when I put the pencil in contact with the tablet surface it generates a diagonal line. I can't do anything, or draw anything, just by making that contact, a diagonal line comes out.
We're sorry about the trouble with Photoshop while using the Wacom tablet. Would you mind sharing the version of Photoshop you're using? Please try re-installing the tablet driver to check if that helps. Also, please ensure you have all available Windows updates installed on the computer.
I have the same problem, but it only happens when Photoshop is open and I connect the Huion HS610 tablet, so that it does not happen I must close Photoshop, connect the tablet and then reopen Photoshop, the problem so far has only been with Photoshop, it does not happen with Illustrator.
It could also be a problem with the Huion HS610 drivers or an incompatibility with the latest versions of Photoshop.
Adobe must be aware that there is not only Wacom, there are also other companies like Huion that make tablets to optimize their software.