Here I finally am with the requested video of summon lag occurring.
This is a server-wide occurrence that's been happening unpredictably and frequently since dungeon revamp was released. I know it's server, or at least channel-wide because while in voice calls, multiple people complain about summon lag at the same time. It affects both summoning and desummoning pets, and you can't perform any actions while stuck in summon lag. Location and connection speed have no affect on this, to my knowledge. I've experienced it in California and Hawai'i. My friends in New Jersey and Ohio have experienced it. A friend more south in California than I am, one who also has a godly connection, also experiences summon lag.
Here's a video of this occurring.
Microsoft's instant replay didn't pick up my own microphone, but from my friend's "help help help help help" in call, you can tell that at least two people (me and my friend) are experiencing summon lag at the same time.
Since you can't act while the summon lag window is up, it can cause a lot to go wrong, including VHM runs (see the video) or just resulting in death in other scenarios.
This bug has been around since the dungeon revamp. I've heard that KR had the same problem, but patched it? Regardless, now that there's video evidence of it, it would be much appreciated if you could look into it.
Edit 10/12/2017: I've since captured this happening several more times, some on my own side, some from friends that experienced it and recorded it. Here
are some examples, and here
are a few more from 10/11. These occurrences were all around 3-5PM HST, or 7-9PM Pacific. Toon suggested that summon lag seems to happen more during "prime times," so perhaps this is a good window to look for it in. Additionally, the VHM runs on Wednesday, 10/11/2017, had a lot of trouble with summon lag. The next day, we ran at the same time after the servers had been restarted for the patch, and experienced little to no summon lag.
Edit 10/15/2017: I got another example of summon lag occurring, and probably the best one so far. In this capture
, many party members tried to summon pets during a summon lag spike, and as you can see, all of their pets finally summoned at the same time once the summon lag subsided.
Edit 11/29/2017: As a disclaimer, I've pretty much always played Mabi on a solid connection, decent ping, good computer, etc.. I rarely notice summon lag that is clearly client-sided or local, though I won't say that such doesn't exist. Sure it does. But any client-sided or local summon lag, as has been implied, depends on your own set up, and my set up is usually pretty good. Since the dungeon revamp, I've noticed an increase in summon lag, regardless of my location, connection, or computer. I am not expecting all forms of summon lag to be server-sided problems, but one form of summon lag very clearly is.