Code G (with no accompanying code B) reports a direct rollover from a traditional 401(k) account, not from a Roth 401(k) account. By answering No to both questions asking if the destination account was some type of Roth account, the rollover is reported as a rollover from a traditional 401(k) account to another traditional account.
Also note that a distribution from a traditional account in one employer's plan is not permitted to be rolled over (taxably) to a designated Roth account in another employer's plan. A rollover from a traditional 401(k) account to a Roth 401(k) account is only permitted to be done in-plan, and In-plan Roth Rollover (IRR).
Are you sure that there is no code B in box 7 along with the code G?
