I wrote a reply last week and a fix PR but forgot to post lol:
I didn't see arty in that replay, but I found it in #23022644. Unfortunately it is desynced so idk if the replay shows the truth of what happened.
For those who didn't watch the replay it's dualgap and a player built arty up on the cliff next to the bases and the arty can't shoot because the muzzle velocity characteristics don't give a possible firing solution, as you can see in the screenshot there are very few possible firing locations:
462ac479-80fb-4bbb-a3df-0c038e5ad8be-image.png