I am using the Perspective Linear scale, latest available build (b2019052002). I have a min value of 0, max value of 10. Major ticks span property of 1 results in tick labels 0-10, one at each integer value. I want minor ticks at each 0.5 value, ie. 0.5, 1.5, 2.5, etc. A span of 0.5 does not work to add minor ticks less than a single integer value. Same applies for fine ticks (if I wanted them at 0.1 or 0.25).
This issue was fixed in the 8.0.6 nightly build that was uploaded today (10/9).