There can be many reasons for why you are not building muscle. However, remember that building muscle is much slower than losing fat, so it’s important to be patient and trust the process.
It’s also important to remember that during a bulk where you’re intentionally putting on weight, it can be difficult to see the hard-earned muscle gains. That’s why, after an appropriate amount of time, you can switch to a fat loss phase to reveal your hard-earned gains.
During this period of time, pay attention to how your workouts are progressing. Since you have plenty of energy and extra calories to fuel muscle growth and workout sessions, you can put that to great use by progressing quicker than you would be able to during a fat loss phase!