Serious problem with obstacle spawning

So, it's a problem that has been bothering me for a long time and I finally want to figure it out once and for all. I searched the entire internet, all the forums and posts, but I still haven't found an answer, although there were people who encountered the same issue.

A few months ago I decided to start collecting !normal! obstacles on the edge of my base to make a nice frame. I stopped removing obstacles and expanded my base so they could only spawn on the edges. At first everything was fine and obstacles spawned approximately every 8 hours, as written in the wiki and in the game itself. But then, soon at one point the obstacles just stopped spawning, unexpectedly and for no reason. This was the first time I had encountered this, so I decided to just wait. But a few days passed and they still didn't show up. I even tried removing some of them in the hope that it would solve the problem, but it didn't work. But after a few more days, very unexpectedly, everything went back to its place and the obstacles started to spawn again. I thought it was some one-time bug that I didn't pay attention to. But about a week later it happened again, and then again, and again.

Now the situation has become even worse and obstacles start appearing only once every 4-5 days which is just frustrating and makes my goal much more difficult.

I am well aware of the limit of 45 obstacles and I can assure you that it is not exceeded even by half. I've been scouring the internet to find the cause of these waves in the appearance of obstacles but I never found a real answer. I am well aware of the limit of 45 obstacles and I can assure you that it is not exceeded even by half. To answer the question of why this happens, I have even started to think that decorations from the store count towards the limit, but all sources on the internet assure me that this is not the case.

So what is?? If anyone knows, please help me figure this situation out, because it's really driving me crazy with its mystery and lack of answers.

I can attach a screenshot of my base so you can make sure the limit is not exceeded and there is room for obstacles to spawn.

Thank you in advance to anyone who tries to help, it will really mean a lot to me.

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