After updating to re-frame-10x 0.3.5, I see the following:

WARNING: No such namespace: mranderson048.re-frame.v0v10v2.re-frame.db, could not locate mranderson048/re_frame/v0v10v2/re_frame/db.cljs, mranderson048/re_frame/v0v10v2/re_frame/db.cljc, or JavaScript source providing "mranderson048.re-frame.v0v10v2.re-frame.db" (Please check that namespaces with dashes use underscores in the ClojureScript file name) at line 238 resources/environment/dev/public/js/out-app/day8/re_frame_10x.cljs
WARNING: Use of undeclared Var mranderson048.re-frame.v0v10v2.re-frame.db/app-db at line 238 resources/environment/dev/public/js/out-app/day8/re_frame_10x.cljs

Looks like the two warnings may correspond with these two results: https://github.com/Day8/re-frame-10x/search?q=v0v10v2&unscoped_q=v0v10v2