I did it, again and again, after uninstalling and reinstalling KSP... I already tried this morning with KSP 1.4.3... same results :
https://app.box.com/s/cdoz6a9x64e8jnl3n1u6t6qcvtimg6zj
With CKAN, no matter how I install the app (by your link, spacedock...), it always recognizes the version 2.2 of Better time Warp... (never your work : 2.3.10)
https://app.box.com/s/gzed77cyjn7d703xuztda4hnzjw1kdp2
I'm frustrated because I think that your app is unavoidable and necessary !!!!