[BUG] Weird Ward_Placed events every 50 seconds. Could maybe be caused by faelights?

[Degcube]

Bug Description
In season 16 matches, after every ~50 seconds we get weird ward_placed events in the timeline.

"events": [
                    {
                        "creatorId": 10,
                        "timestamp": 276,
                        "type": "WARD_PLACED",
                        "wardType": "UNDEFINED"
                    },
                    {
                        "creatorId": 0,
                        "timestamp": 276,
                        "type": "WARD_PLACED",
                        "wardType": "UNDEFINED"
                    },
                    {
                        "creatorId": 10,
                        "timestamp": 276,
                        "type": "WARD_PLACED",
                        "wardType": "UNDEFINED"
                    },
                    {
                        "creatorId": 0,
                        "timestamp": 276,
                        "type": "WARD_PLACED",
                        "wardType": "UNDEFINED"
                    },

Problem Description
I can't explain the data, would be nice to know what this is about.

Developer Impact
Not sure how to work with that

• Severity: Not dramatic

Repro Steps
Check match EUW1_7675605917