Random Lines Appear When Shading

I'm having issues where random straight lines appear during the process of shading with single lines, more specifically this seems to happen during the repetitive motion of drawing lines.

I'm using a Cintiq Pro 24 at 4K resolution. Here's an example. The lines highlighted by the arrows were randomly generated as I attempted to "shade"

Does anyone know the fix/workaround or root cause for this issue?

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  • UPDATE:

    This issue is happening simply by drawing lines. It doesn't have to be in quick succession. It might have something to do with the speed at which the pen is lifted off the tablet.

    Upon further investigation, when switching from Wacom-compatible device to RTS-compatible device in Tablet preferences, i can no longer reproduce the issue (although I did get the original issue once when I closed the document and then created a new one. Maybe something to do with memory/CPU consumption)

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