Walter Smith lost his 100 per cent record as Rangers boss after a goalless draw with Hearts.
The game was overshadowed by the news that Paul Hartley and Craig Gordon were left out by Hearts as doubts continue to surround their futures.
The draw leaves Rangers 16 points behind leaders Celtic.
Aberdeen moved into third spot with a 2-0 win at St Mirren.
Two first-half goals from Andrew Considine (8,36) were enough to give Jimmy Calderwood's men their first win in six games.
Kilmarnock leapfrogged Falkirk in the table with a 2-0 win over John Hughes' side.
Colin Nish broke the deadlock on 22 minutes and Steven Naismith added a second six minutes later.
Hibernian bounced back from last weekend's defeat at Inverness with a 2-0 victory over Motherwell at Easter Road.
Scott Brown shrugged off speculation regarding his future to fire Hibs in front on 66 minutes and Abdessalam Benjelloun's last-minute strike made sure of the win for John Collins' men.
Dunfermline ended their five-match losing run in the SPL with a goalless draw at Dundee United.