Mo. Rev. Stat. § 508.240
Current with changes from the 2023 Legislative Session
If any clerk fail to transmit the transcript and papers in any cause, the venue whereof has been changed, or if they be sent and lost, such loss or failure shall not operate as a discontinuance of such cause, but they may be filed at the next term of said court; or, if lost, copies of the original may be furnished and filed, and the cause shall proceed as if no such failure or loss had happened; provided, however, that the court or the judge granting any change of venue shall have the power to set aside and annul the order thereof, by consent of parties, at any time before such transcript and papers shall be actually filed in such other court.
§ 508.240, RSMo
RSMo 1939 § 1070