Hoping for some advice on a creaking bottom bracket.

I recently had my 2014 SC 7.0 BB bearings replaced using replacement bearings obtained from a trek dealer. The work was done by a qualified bike mechanic that has a good reputation, wrenching my bike for the past several years and runs a national pro team, etc.

Since replacement, I am getting a creaking noise (or a groan) when I exert lots of force on the right side, such as during a standing sprint or climb. The noise only occurs when the right crank is approaching the bottom of the stroke, and only under high force.

The shop has taken apart and reassembled the BB about 5 times now, and it is still making noise. The last time around, they used a green Loctite cmpd that they were sure would fix the problem but no luck.

Does anyone have any suggestion on what could be causing the noise and how to get rid of it? I'm at my wits end. The bike was making zero noise before, and I only did the bearing replacement as a pre-emptive since the bike weathered several overnight thunderstorms last year at races. The headset bearings were toasted, and I figured while I'm at it....

Any help greatly appreciated.

Thanks in advance,

Steve