A dialog which is being loaded from a load library has been punched to a load module with the wrong name.
For example, something like this might be seen in the snap dump in the dc-log:
0043019 10.32.57 PDE AND PROGRAM TEXT 01F742DC0 C3C7D7C4 C9D6F0F3 1F5E3490 40401400 00000000 00000000 00000000 40000000 *DIALOG03.;.. .............. ...* 1F742DE0 00000000 00000000 40000000 1F981850 14000000 9F81FBE4 1F81FBE4 00000000 *........ ....q.&....¤a.U.a.U....* 1F742E00 00000000 1F742EAC 1F5E3390 00000000 00010000 00000000 01000000 04208000 *.........;......................* 1F742E20 00050000 00000000 00004E08 2E107000 03100000 F0F161F2 F361F1F8 F0F9F3F2 *..........+.........01/23/180932* 1F742E40 F5F80000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 *58..............................* 1F742E60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 *................................* 1F742E80 00000000 1F5E3290 00000000 00000000 00000000 0ADF5E17 00000000 00000000 *.....;................;.........* 1F742EA0 00000000 00000000 00000000 06000000 00000000 00000011 00000001 00000000 *................................* CONTENTS THROUGH 1F742EC3 SAME AS ABOVE LINE. 02E107000 C6C4C25C C3C7D7C4 E4D6F0F1 F1F061F0 F461F1F8 F0F9F5F5 F2F4F9F2 C3C7D7D4 *FDB*DIALOG0110/04/1809552492MAP-* 2E107020 E4D6F0F1 F0F961F2 F161F1F5 F1F7F1F4 F2F6D9F2 C3C2E2C3 C8C5D4C1 C3C7D7E2 *UO0109/21/15171426R2SCHEMA01XXXX*
This is an indication that ADS dialog DIALOG01 has been punched to a load library with a load module name of DIALOG03.