When processing a GEDCompare report, a few times I have been prompted with the Marriage screen which has blank dates in it. This seem odd since you don't get prompted unless a MARR record is found. Traced the current record I was working on back into the ged file and found the required and appears to be the correct entry.
0 @F1292@ FAM <--- the correct family
1 HUSB @I4523@ <--- correct husband
1 WIFE @I4524@ <--- correct wife
1 MARR
2 DATE 9 FEB 1795
2 PLAC Glemsford, Suffolk, England
There has to be a glitch someplace because this happens randomly. Leaving you to investigate the internals.