Philippe Clement's side has now drawn in their second consecutive game, leaving them trailing Celtic by a significant 15 points.
Oluwaseun Adewumi's sixth-minute strike for the hosts came before Vaclav Cerny replied with 11 minutes remaining in the opening period.
Rangers were unable to convert their second-half dominance into a win meaning it is now four games away from Ibrox without collecting maximum points.
Rangers players were jeered by their own supporters as they left the pitch, with the morale-boosting 3-0 victory over Celtic at Ibrox on January 2 already a distant memory.
More to follow...