That was a bug that I fixed for EL v8.3. Didn't change anything since then. At startup, if EL finds new arcade binaries, only the version info text is updated, but the exe selections should remain intact.
I will to take a look at it again. I updated to MAME 0.192 already and didn't get this bug.
Thanks for the bug report.
Ciro Alfredo Consentino
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