I climbed up the tall white Tower at the "Chernarus International Airfield", found some Mags and a .45 Pistol. When I lowered my gun and tried to climb down the tall ladder of the tower my charakter steped over the parapet/balustrade and jumped to its death.
Reproduced it several of times at different Fire Station (Elektrozavodsk) . 5 of 10 tries ended with a fall into death. Some friends of mine told me they noticed this issue too.