Since I'm having the same issues as a similar issue previously marked as "closed" I could find ( https://feedback.secondlife.com/scripting-bugs/p/bug-prevents-feral-running-speeds ) - and have been for years, waiting for a supposed fix, but no visible feedback here otherwise - I've decided to open this feedback with further description of behavior. This is an issue that disproportionally effects the animal avatar communities, as speed enhancement above the default SL speeds is common. However, I imagine this would also cause issues in the use cases of giant avatars as well, alongside anyone who wants to use basic speed enhancements on their avatar. Please let me know whether or not this is being tracked / addressed, or if this feedback needs to be submitted anywhere else more appropriate.