EQA9913E EQADTCN2 invalid recordsize. All regions which share the EQADTCN2 queue must be at the same version of DT.

Explanation

The DTCN TS-Queue Repository EQADTCN2 has items which have an incorrect record size for this version of z/OS® Debugger. This could be because you are sharing the repository among regions which are using different versions of z/OS Debugger.