The crane worked perfectly in the first realm, although in reality it also had a 180° block, as shown in the image.
It seems that in the second realm the position of the crane was not reset and this also moved the maximum and minimum angle in which the crane rotates.
I also have this problem with the other crane in the same area.
If anyone has this doubt Splurps is the name of the realm where the bug happened.
They’re aware of the issue and had a Discord announcement this morning. It sounds like it is only affecting realms created during a set period of time or on a specific patch/hotfix and they’re trying to figure out a solution.