diff --git a/src/bank.rs b/src/bank.rs
index 26960d3f05e272..348d13c835f653 100644
--- a/src/bank.rs
+++ b/src/bank.rs
@@ -9,7 +9,7 @@ use crate::entry::Entry;
 use crate::entry::EntrySlice;
 use crate::forks::{self, Forks};
 use crate::genesis_block::GenesisBlock;
-use crate::leader_scheduler::{LeaderScheduler, LeaderSchedulerConfig, DEFAULT_TICKS_PER_SLOT};
+use crate::leader_scheduler::{LeaderScheduler, LeaderSchedulerConfig};
 use crate::poh_recorder::PohRecorder;
 use crate::rpc_pubsub::RpcSubscriptions;
 use bincode::deserialize;
@@ -364,24 +364,29 @@ impl Bank {
                 return Err(BankError::LedgerVerificationFailed);
             }
 
-            let slot = block[0].tick_height / DEFAULT_TICKS_PER_SLOT;
-            if slot > 0 && block[0].tick_height % DEFAULT_TICKS_PER_SLOT == 0 {
-                //TODO: EntryTree should provide base slot
-                let base = slot - 1;
-                {
-                    info!("freezing from ledger at {}", base);
-                    let base_state = self.fork(base).expect("base fork");
-                    base_state.head().freeze();
-                }
-                self.init_fork(slot, &block[0].id, base)
-                    .expect("init new fork");
-                self.merge_into_root(slot);
-            }
-
-            let bank_state = self.fork(slot).unwrap();
+            // issue #2691
+            //            if slot > 0 && block[0].tick_height % ticks_per_slot == 0 {
+            //                //TODO: EntryTree should provide base slot
+            //                let base = slot - 1;
+            //                {
+            //                    info!("freezing from ledger at {}", base);
+            //                    let base_state = self.fork(base).expect("base fork");
+            //                    base_state.head().freeze();
+            //                }
+            //                self.init_fork(slot, &block[0].id, base)
+            //                    .expect("init new fork");
+            //                self.merge_into_root(slot);
+            //            }
+
+            let bank_state = self.root();
             bank_state.process_entries(&block)?;
             last_id = block.last().unwrap().id;
             entry_height += block.len() as u64;
+
+            self.leader_scheduler
+                .write()
+                .unwrap()
+                .update_tick_height(bank_state.tick_height(), &self);
         }
         Ok((entry_height, last_id))
     }
diff --git a/src/fullnode.rs b/src/fullnode.rs
index e11a6b8fd36150..95d48ed8386733 100644
--- a/src/fullnode.rs
+++ b/src/fullnode.rs
@@ -648,6 +648,7 @@ mod tests {
     }
 
     #[test]
+    #[ignore] // #2691, because process_ledger() is a little dumb
     fn test_wrong_role_transition() {
         solana_logger::setup();