Similarly I have an underground trading hall/iron farm and had added top half slabs to prevent golem spawns along a ledge with 3 blocks clearance. This worked until release of 1.20. Illustrated in report MCPE-175771
Also good trick SunlessFrog16, I will try that too.
Same problem in spaces 2,5 blocks high.
Similarly I have an underground trading hall/iron farm and had added top half slabs to prevent golem spawns along a ledge with 3 blocks clearance. This worked until release of 1.20. Illustrated in report MCPE-175771
Also good trick SunlessFrog16, I will try that too.