3.5 (3515)
I can see from this answer that I just need to add a Enforce Compatibility Check custom parameter and uncheck it however the bar persists:

It’s getting in the way of the drawing and so far the only way I can move it is to change the ascender.
SCarewe
(Sebastian Carewe)
2
That means you have an active instance that relies on the interpolation to be generated. Deactivate it.
Disabled. Still there. I had to delete all the instances. Is it possible to just disable the instance.
Will ignore disabled instances in the text update.