That sounds like the DeEsser has carved too much from the second “risks”.
probably because it was louder than the first “risks”.
Paul-L’s DeEsser has an absolute threshold, rather than a relative one,
so if a sibilant word is loud it will shave too much sibilance off of it.
Solution: Professional replacement for Paul-L’s DeEsser …
Here’s an “Intelligent” Professional DeEsser plugin, which has relative threshold …
https: //www .fabfilter.com/download/#download-pro-ds-de-esser-plug-in
I just tested it in Audacity on Windows : it ***** works fine. It will DeEss a lot faster than Paul-L’s
Free 30 day trial. Now the bad news : if you want to buy it, it costs ~US$170, just for one plugin. 
If you can get the project done in 30 days, no cost.
[ ***** NB: Only 32-bit plugins work in Audacity, even if your computer is 64 bit,
so only install the 32-bit “VST” version of “FabFilter Pro-DS” , (NOT the “VST3” version)].