Advertisement and Experience letter mismatch

[visacheck1]

Hello,

My experience letter from previous employer and Job Advertisement has some mismatch ( like some responsibilities are missing in experience letter). I don't think I can get another letter from my employer.
Will this trigger a RFE?

[visacheck1]

Hello,

My experience letter from previous employer and Job Advertisement has some mismatch ( like some responsibilities are missing in experience letter). I don't think I can get another letter from my employer.
Will this trigger a RFE?

Anyone has an idea?