First of all thanks for the quick response.
I use Final Burn Neo mainly to record TAS (Tool-assisted superplay) gameplays, which means that sometimes I save and charge save-states several times so I can then record a perfect gameplay on video and upload it to YouTube. In the games of regular Neo Geo also sometimes fails, I could say that of 10 games I record 3 fail, I do not know exactly what causes it, there are games where I just use save-states to repeat zones and yet it fails, and there other times I repeat more than fifteen times, I use the Pause, FFWD, change options, macros, and everything works correctly. I have not noticed that it has to do with the duration of the video, I have recorded long gameplays to Samurai Shodown 2 (45 minutes) that have failed, and other short Fatal Fury Real Bout 2 (18 minutes) and fail the same.
The fault usually is that either during the game there is a moment in which the character stops moving, or gives the impression that his recorded movements have been desynchronized and that causes the end of the game, it may be right at the beginning, in medium, or in the end, I have not found a concrete routine either.
With the games of Capcom (Street Fighter for example) has also happened to me sometimes, but there I have not done so many tests.
Macro buttons in Neo Geo work well, even if you change them during the game.
I hope you can find the problem and solve it, I would save a lot of time ha ha ha
. Thanks for all. Greetings.