Hello,
In other countries, there might have been a failed series. But that does not necessarily have to be the case in Germany. Because it is probably a different manufacturer and a different production number. So, if it really is like that, it only affects another country.
Example:
A BMW is indeed built in Germany, but before it is in, for example, England, a certain amount of time passes, I think with customs and shipping about 14 days. By then it has already become known in other countries, such as Germany, that there is a problem. So the error will probably be found before delivery.
It is the same with editions. We in Germany are a bit faster in delivery. Therefore, the problem is likely to be regionally caused. For example, in storage, after delivery.
I think you can buy the edition with a clear conscience. Besides, you have enough time to sniff that out. If you are not satisfied with it within 3 months, you can return it without any problems. Ikea only just made big advertising about 90 days test sleeping.
Regards Maverick1854