I don't think so because like I said above I hadn't encountered a golem or even gotten a golem hand, nor did Sebas and Lothar even try to hit each other, I only remember Sebas mentioning maybe he wanted to get back at Lothar for kicking him that one time
Okay, I restarted and was able to do the rolling stone quest. At this point I haven't yet talked to Lothar to start the investigation, but I have done some quests that involve crafting some things, right now I'm doing the one where we harvest in the field and get 3 rosemary for Cane. Are those in a map that I'll find later?