Magnetic fields in tidally locked planets

[Baleia espacial]

I read that planets like this probably don't have magnetic fields because of the lack of convection in the core of the planet, however, and if the planet rotates with the rotation axis always pointing towards the star, that way the attraction of the star would be equally distributed and would not slow down the rotation of the planet. Taking all this into account, would it be possible for a planet that is gravitationally locked to maintain the processes at its core that allow a strong magnetic field?