vcv is a pattern of vowel, consonant, vowel like "age" or "paper". "problem" has two syllables but because there are two consonants between the vowels it divides into prob-lem (two short vowels) rather than pro-blem.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them