I don't have a server to test it with, but in single player starlight transmution will not work, and even stop part way through if you quit to title screen then load back into any world. The light beam shows but the particle effects don't appear and the change doesn't occur. Rebooting minecraft will fix it.

The iron ore block I was testing with was placed by the player, not any kind of automation.

AS version: 1.8.5
pack: DW20 1.12 v1.8.0
java: 1.8.0 161 (manually changed in launcher)

Can you provide the server-side log for the SSP instance, both from when exiting, and then when loading back in to view the transmutation broken? Sounds like something's not properly unloading/reloading unless the pack restarts.

in addition to that, try reproducing this without any chunkloading mods installed.

I'm going to assume this is the appropriate log since it's the only one I can find that looks to be relevant.
Part 1: https://pastebin.com/rJxtVkp5
Part 2: https://pastebin.com/CQv2N7uy

Disabling FTBUtilities-4.2.4 which is the primary chunkloading mod of the pack had no effect. trying others.
edit: still having no luck with disabling other mods. reverting AS to 1.8.4 resolved it though.

We are noticing this same issue on a multiplayer server. The server is set up so no Astral Sorcery structures spawn in the overworld, forcing the player to venture into an the Earth dimension in the Elemental Dimensions mod by McJty to find those structures, the primary crafting experience of making your first wand and making a luminous crafting table goes off without a hitch, but once you get into transmutation to get starmetal this is where we run into issues. If you happen to log out in the Earth dimension before a server restart, when the server comes back up you are able to transmute to your hearts content, however if you venture back to the overworld and then come back, well, no more transmutation until a server restart. Upon further testing, if you happen to bring a chunk loader with you and place it down before leaving the earth dimension, upon returning you are still able to transmute.

So it appears that when the dimension unloads after you leave the first time, something is not happening properly when you return to allow the transmutation. Chuck loading, of course, prevents the dimension from unloading, thus you can transmute as you should be.

I am not the server owner, so I do not have access to any logs, but this seems to be a problem with Astral Sorcery not loading things properly after the dimension reloads.

The server owner said he can provide any additional info you may need

Which mod's chunkloader?

Hi,

I'm the server for above comment, he is the basics:

Forge: forge-1.12.2-14.23.1.2608
Mods: astralsorcery-1.12.2-1.8.5.jar and elementaldimensions-1.12-0.2.0.jar

Please let me know if you need server logs and which ones.

Regards.

weirding gadget is the chunk loader mod

Here is a link to the modpack with the full list of mods.

https://minecraft.curseforge.com/projects/pughland-foedare

This issue is occurring with the FTB Revelation v1.6.0 modpack as well. Same as described, reloading fixes the problem and allows transmutation to function fine, but quitting to the menu breaks transmutation until the game is reloaded again.

I may or may not have stood still waiting for a block of iron ore to transmute to starmetal for literal hours before trying to figure out if that was normal or not.

I am having this problem as well.

Same problem here

Actually finally found the issue for this being related to how data regarding the starlight network is written & read. Unfortunately i won't rewrite the entire section for this for 1.12, but as far as the 1.14 version goes it should be fixed from thereon.

So. yea. closing this as it won't be addressed from my end for 1.12, will be by-design fixed with the 1.14 internal changes.