Quick look at the gloox sources there is no explicit handling of client certs at all. Also https://learn.microsoft.com/en-us/windows/win32/secauthn/performing-authentication-using-schannel suggest Windows only looks for client certs if the server actually asks. Maybe you can configure ejabbered to not do that.

For reference: https://gitea.wildfiregames.com/0ad/0ad/issues/5396  I believe it's likely that this is caused by the same underlying problem.

That's great, perhaps broadcasting the matches on several social media platforms would promote both the game and the mod.

https://www.eliteminiaturesaustralia.com.au/a-miniatures-palmyran-army-3rd-century/?srsltid=AfmBOootOYKRW1X_8_8-2LqMPbaZcWsD7OyOnIvm8ALkbG7Qh2ZLwLTf   This is difficult; there aren't many sources on the appearance of archers. Basically, it's a combination of Eastern archers with a Persian archer and a Syrian auxiliary archer.

https://www.romanarmytalk.com/rat/archive/index.php?thread-18515.html Composition of the armies of the third century. It would seem that, if III Gallica are representative of other legions, the Roman army in the east remained loyal to Rome after the death of Odenathus. There could well have been defections, but as far as I know there's no evidence for this.   Palmyrene cavalry was very heavily armoured, so cataphracts would be a good guess. Otherwise, Zosimus gives Zenobia 'Syrians... Saracens and Armenians' - apparently light cavalry. Palmyra was a great trading centre, and probably made good use of mercenaries - the shifting allegiance of the Saracens and Armenians might reflect this.   Aurelian's army of the period was similarly polyglot: 'Mauritanian horse... Tyaneans... Mesopotamians... Syrians... Phoenicians, and... Palestinians' besides the Praetorians and legionary troops drawn from the Danube. (all quotes Zosimus , Historia Nova, Book I)   - Nathan