I don't support this suggestion but my reasoning behind it is because of what has already been made cannon in the game-world. The introduction of the Golems established where they originated from and how they were restored so that us beastlords could use them. It was a forgotten technology but we've already regained the knowledge of building them so why would it suddenly stop working?
I would, however, approve of this idea and give it my support if it were to be the harbinger of an event and given a reason as to why the blueprints are unstable. During the announcement post of the Golem change, for example, a small bit of story be included along with it that is later elaborated on in a larger event.
Example: An unidentifable surge of magical energy swept through the land of Europa. While the Warlocks have been unable to find the source they are determined to investigate the event. While no catastrophic disasters have been linked to it the Golems were effected by this pulse and the magic that sustains them has become unreliable. After each individual use the recipe becomes unstable and is no longer capable of being used in crafting - they are now only able to tolerate a single use before crumbling and a new one is then required.
Of course this is just an idea from me as to how it could be implemented and still stay true to the game's story so far and possibly build upon it. I personally would find it interesting if the above mentioned magical pulse was caused by a Golem Kami. The first time it visited Europa was back during the Old Empire and it helped inspire the creation of the original Golems. Now that is has returned us beastlords have the chance to convince it to stay, likely with the sacrifice of a lot of different materials and the construction of several/all of the existing Golems as part of the objectives. His special power would be the ability to sustain the Golem recipes so users who have him wouldn't have to continually use new recipes for the same Golem, or perhaps he would cut the crafting period by a certain amount of time.
It is well-known that the majestic cities of the Old Empire were build with the help of Golems - the artificial creatures created from inanimate matter. Although the secret of creating the Golems was lost at the times of the Great Flood.
The Council of Mages discovered that the key to the animation of inanimate substance lies in the ancient manuscript which could escape destruction in the flood. The Council calls on all of the Beastlords to pass the found parts of the manuscript to the Municipal Scriptorium. When all of the parts will be collected, the Mages will be able to restore the principle of producing these industrious beings. Magicians promise to make a copy of the new Golem schemes as a reward for all Beastlords who will help by giving the manuscript parts to the Scriptorium.
The Golems are here
With the help of the Beastlords, the ancient manuscript was restored and the Magicians managed to construct and animate several Golems. The users who helped the Council have earned the unique achievement which is viewable in their profile and below avatar in the forum posts.
A Golem is an artificial being which multiplies the materials spent on its construction by 2. The Golems live 10 days providing 1/10 of their total material resource each day. To create a Golem, you need to find and learn its Scheme first. You can find the schemes for 4 Golems right now: Clay, Stone, Wood and Cotton.