That's why I specifically said Tibia client, not OTClient. I played most actively 5-15 years ago when OTClient still wasn't used that often, so I can guarantee that this is a common glitch using the original Tibia client, but I haven't used OTClient enough to say for sure, all I know for sure is that these types of graphical glitches are common in pretty much all retro games including Tibia.Excuses for no reason. You've got forked an OTClient on your Github repository, and you're still comparing me an 10-years-old video using Tibia standalone client versus modern OTClient which is used by Realesta War.
I don't play Realesta anymore and I don't randomly argue with idiots on the Internet anymore, I provide information once in a while when relevant, if they're not interested in learning (becoming less stupid) it's their loss, not mine.
On the matter of your word your guarantee is worth nothing, if you're interested in having someone try to prove you wrong you should either find someone dumber to argue with/posture over or you could place say a $100 bounty on "this glitch not existing in the Realesta client" and maybe then someone will actually take you serious enough to try.