Thank you, I have some ideas now.

The lack of cone effect is actually due to a missing tile; this one is fixed in development.

I suspect what is happening is that the wrong part of the screen is being wiped when effect animations are displayed. First, some questions:

• What version of Windows are you using?
• Are you playing with the default graphics settings? If not, how did you change them?

and could you do some tests for me?

• Turn the base delay factor right up, and see if you can tell when during an effect animation the sidebar/message is wiped;
• See if you can see any pattern to what gets wiped by animations on different parts of the screen.

Finally, if you could post a savefile (and randart file if you're using randarts) that would be really helpful.

Windows 10 Pro 1903

Yes, I did. In ASCII-Mode the error doesn't occur.

Since my character died, I'll start a new character later today and post the results.

Sorry, I wasn't clear. What I meant was: when you were playing with graphics and getting the problems, had you changed any of the settings, or were you just using the ones the game starts with?

You could be right about wiping the wrong parts of the screen. In this save an (invisible) cone hit me the last few turns from the left and the SP in the sidebar got deleted.

https://vps.mdiergardt.de/Angband6.png

Savegame: https://vps.mdiergardt.de/Markus

Walking around while getting hit by the dark hounds should reproduce the bug. Default graphics with "center map continously" enabled.

I didn't change the graphics settings but only enabled auto-center map.

Just a very minor detail: I got these messages while hitting something invisible with an un-IDed Slay Evil weapon:
https://imgur.com/W6JcSGp.gif
This doesn't make much sense: if I don't know what I hit, I shouldn't be able to tell what this weapon slays. Also ideally the order of the first two messages should be swapped.

Excellent, thanks

Minor display bug -- when looking at a monster, it looks like sometimes one of the damage items gets printed in the same color as the screen background, making it unreadable.

I can't reproduce this reliably, but I have seen it several times. I *think* I've only seen it in the description of breath attacks.

http://www.chud.net/images/screen.png

This happened to be a great swamp wyrm.

This is one or two builds back from the latest nightly -- baacb2d0c I believe -- on Linux mint 18.

I've gotten into a weird situation, what seems to be a bug. I'm standing on a room that has pillars and straight corridors. There's a band of Ologs coming my way but they do not engage, even though the path is not blocked. Ologs stay away one tile between me and them, and they keep moving north and south in front of me, never crossing the melee line. If I cross the line and get next to them, they do not attack, just keep jumping north/south. As if they were curious and afraid at the same time. Ologs in question, were mildly wounded by 2-3 Stinking Clouds but they were not fleeing at any point. Note: these Ologs are a part of Rogrog's gang.

I have noticed the same behavior earlier with Uruks. And notably, Uruks did not use their ranged attack. Just stayed away from melee, not fleeing.

I have game saved in angband.live right in the middle of this weirdness.