The Vespa has three weapon types...the front weapon is the beam which is easy to see...the side weapons are laser point defences while the rear is a laser, and the effects are quite similar...both weapons fire in pulses and the colors are close so it's hard to distinguish between the two...to make it even more difficult, each weapon has a firing arc so you can't even tell by the angle if it's a rear or side weapon...

It seems though that both are properly firing...you can test this by changing/removing either the side weapons or the rear weapons...it seems that the rear weapon is a little more on the blue side while the point defence is a little more on the green side...

What graphic settings are you playing at, and what is your graphics card?  This may not be an issue with the ship or effect, but a compatability issue...

Also, you may need to bump this thread on Monday so that the devs see it...it's a holiday week now so they may not be "watching" the forums...

Okay they definitely should have sound effects, that is not a good sign....

Can you get them to appear on any other graphics setting?

Did exactly what you did (for both Advent corvettes), most certainly am not getting the same results...it would actually be better if the thing was just bugged for everyone...

I can clearly see the blue pulses coming from the rear and the viridian pulses coming from the center (towards left or right)...both damage values were also comparable, and there are listed DPS values for all 4 weapon banks...

I don't know what to tell you, this is really really weird, definitely make sure you get dev attention...

Some troubleshooting thoughts (I can't say that I've observed this and as I am at work, am unable to test):

1. Try it with ALL mods disabled (if any were enabled)
2. Completely dump the game from your PC and then reload it from Steam.  Note: I'm not talking about file verification from Steam.  I mean uninstall/delete all files associated with the game, including everything in the "Documents/My Games" area and any straggler files after uninstall in the "Program Files/Steam/SteamApps" location.  Make sure to save copies of any mods/saved games/etc you want, but don't reload them in until after you've had a chance to test if the problem has cleared up.
3. While I doubt this is the cause, try to update your graphic's drivers anyway.  It may (potentially) even be a situation where you need to downgrade the drivers to a much older one (Knights of the Old Republic had this issue with nVidia).

I'm also curious if this problem ever cleared up for you between versions 1.03 and 1.82?

First I want to thank you and Seleuceia for the detailed tips. I haven't actually played the game between versions 1.03 and 1.80 because I was too busy with other stuff. If I play a replay from the "pro" thread (https://forums.sinsofasolarempire.com/454491/page/1/#3469005), I see the Advent corvettes there fire all their guns, sides and rear included. (There is indeed a graphics difference between these two, though not a big one; the side guns seem to shoot more densely spaced blobs.)  So it seems the problem is only in my own SP games rather than a general graphics issue with the game. I'll upload a short recording (30s or so) from a SP game of mine and maybe someone will be kind enough to tell me when they play back whether they see the rear & side guns shooting or not...

Alas, if I disable all mods, the vettes spawned with dev exe seem to shoot fine with all their guns. But my SP games use the Artificial Unintelligence mod (https://forums.sinsofasolarempire.com/451274/page/1/) because the SP AI/game is way lame otherwise. It would be strange if that mod causes the graphics to glitch (does no modifications to corvettes that I can find). Alas I cannot load save games that use[d] that mod with the mod disabled; doing that crashes/minidumps the game engine...

Strangely enough, I experience the problem during gameplay in the production exe even with all the mods disabled, but not in the dev exe, unless I'm watching a recording created with the production exe. So, I've uploaded a pair of save/recording to http://www31.zippyshare.com/v/69411389/file.html, which requires no mods to load (both were created with zero mods enabled, albeit the save game was made with the dev exe in order to save time, and the recording was made with the production exe, which is the only one creating issues for me now). In the recording I see the Advent vettes at the Vasari homeworld fire only their main beams (it doesn't matter for me with which exe I watch the recording with). On the other hand, if I load the save game in the dev exe, the vettes start shooting their other guns too. I'd be grateful if someone can test the following (neither should take more than a minute):

• does playing back the recording (doesn't matter in which exe) in your installation show any side/rear guns of the vettes firing?
• does loading the save game in your production exe result in the vettes firing all their guns?

Thank you in advance.

Talking about things that don't shoot, the Combat Nanite Swarm spawned by the Vasari Rankulas Battleship doesn't shoot at all. It just sits there, lol.

Actually, the last sentence of your post made me finally figure out to make a 100% reproducible bug report for this. I've updated the OP for the devs to see easier how to repro this. Basically, the bug only happens if you save the game after at least one Advent corvette has been built and then you load that save game.