Few IDOCs getting stuck in datahub during ongoing heavy volume of idoc load from S4 to Hybris Commerece

Hello Experts,

We are facing a peculiar problem wherein sometimes the idocs(DELVRY07) are never published to Hybris when we have another high volume of other type idoc load(MATMAS and LOISTD) ongoing on the same GLOBAL pool. When we push the idoc(DELVRY07) again after the heavy load(MATMAS and LOISTD) completes their publication , the other idoc(DELVRY07) is published just fine.

Any help would be really appreciated..