I recently bought a squier classic vibe jazz and after playing it a bit with the stock strings (.40-.100) on, I decided to replace them with some DR lowriders (.045-.105) I had laying around. While tuning and after tuning there was buzz from the nut when playing open and when fretting notes. Open and with any note fretted the strings have plenty of clearance on all the frets but the nut continues to produce buzz. Is this a case of the nut slots being too tight for the higher gauge strings or something else? Thanks in advance.
Can you adjust saddle height?
I just replaced the strings on my bass and got the same problem. Adjust the truss rod. You may have gotten a slight bend in the neck from heavier strings.