Why were there problems regarding Beethoven's composition studies with Haydn?

Explanation:

The issues regarding Beethoven's composition studies with Haydn primarily revolve around the fact that Haydn was often absent and hence unavailable to teach Beethoven consistently. In addition, Beethoven and Haydn had a complex personal relationship. Beethoven, being a highly ambitious and independent individual, sometimes felt that Haydn's teaching methods lacked intensity and nuance.

That being said, it's not accurate to say that Beethoven's compositions were too advanced for Haydn to understand. Both Haydn and Beethoven were highly talented composers in their own right. Beethoven's compositions may have been innovative and unique, but that does not mean Haydn couldn't comprehend them.