Stop the VSE and delete the corrupted MAR files from DevTest_Home/vseDeploy/VSE_2013 folder. Corrupted MAR files can be identified by the size which are usually zero bytes.
If the MAR files can't be identified by the size then do the below.
. Make sure the VSE is stopped.
. Go to DevTest_Home/vseDeploy/VSE_2013 folder. VSE_2013 is the default folder when the name is VSE. If it is changed in the environment then vseDeploy folder will have a folder with the VSEName_2013.
. Move the VSE_2013 folder to other location from DevTest_Home/vseDeploy folder.
. Start VSE, it should be up and running without any issue and a VSE_2013 folder should be created in DevTest_Home/vseDeploy folder.
. They try copying just *.mar files from the original VSE_2013 folder few at a time and see if any MAR file causes VSE to stop.