Thank you very much for the advice!
Could you tell me in which section of GuiDBedit I can find information related to IPS shared layer? I tried to search for information about the layer by layer name, rule name in the layer and the word "IPS" and did not find any suitable objects. I even added a layer with a custom name (like ips_aaa) and added some rules to see if I'll be able to find them, but to no avail.
If I manage to find them, then simply deleting them and installing policy will be enough?
I would be very grateful for recommendations!