Heal, clone continuous stoke issue with tablet pen in PS 2019

Since Photoshop released PS 2019, I have had continuous trouble with using my graphics tablet pen with tools that require continuous stokes (brush, clone, heal etc).

For example, I am using the clone tool. I take my selection, and want to brush over an area in a single, continuous press on with graphics pen.

To describe what I am doing, to hopefully help understand what I mean, this motion is as if I'm shading in an area with a pencil on paper. One continuous press of the pen to surface.

Photoshop will not follow a continuous stoke, and only applies the tool effect on the point when my pen makes first contact with the tablet. I move my hand to make the continued stroke and the desired effect does not follow to cursor.

This has only been happening since the update to PS 2019 and I know of a few others who have had this exact same issue.

My tablet driver is up to date, PS is up to date.

Any help would be much appreciated. If this is a bug, please fix it asap, Adobe!!