Using version 8.8.0.0046
I'm guessing this is a combination of two by-design features:
Have you put Lewis & Short in a custom series with a Hebrew Lexicon? If so, that will cause this linking. To stop it, remove lexicons (in different languages) from the same custom series.
Yes, that was it. I had it set in a series of Top Lexicons for Hebrew, Greek, and Latin. Thank you! I removed it from the series and that corrected the problem.
Depending on what you're trying to achieve, you may want to use a "Collection" rather than a "Series" to organise these resources. Collections can be used to limit Searches, as the resources used by Guide Sections, etc.