vk.com blocks for suspicious activity

Question

In contact with

Constantly blocked for publishing some photos on my behalf, in the group I created.
Posts are sent by a Standalone application with a client authorization mechanism based on the OAuth 2.0 protocol, using the wall.post method.
At the same time, absolutely all photos from previously sent posts are deleted, including the photo of the group itself.
Can anyone come across? What is the crime?
An example of a photo in the spoiler.

Screenshot

Answer 1

I will answer myself, and perhaps the question can be considered closed.
Suggested in the API group vk.com.
This photo was sent three times at the time of debugging the application, while the time interval between posts was large enough, that is, they were not spammed. But apparently the filters still worked and blocking began. I'll wait for the answer of the support, then I can say for sure.
So avoid the situation when the application sends the same photos more than 2 times, even in a day. They slap cruelly.

Answer 2

Did you write to support? They sometimes respond appropriately.

Answer 3

If messages are fasted often, they may accidentally count as spam.
Better write to support. There is a chance that competent people will come across, answer in essence and provide specific information.