Horseman Cable against aq caltrops G99

In sec 3 map6 aq took down nc with horseman cable degenning him by dashing back, the fight after it was g99 and she didn’t proc any degen, although bleeds kept stashing on cable. Didn’t yet look at the node description, but i’m sure it’s not debuff immune. In g99’s abilities there’s nothing to explain this, like tenacity against mutants, immunity to degen, etc. I guess it’s a bug...?