The folks in the Local Search Forums are complaining that some of their clients are showing weird reporting glitches within the Google My Business Insights section. It is supposedly not too uncommon to see weird dips and/or data glitches in this reporting tool, I guess like it is with Search Console.
Here are some of the complaints:
"I am seeing what visually looks like an insight reporting bug for views and wondered if anyone is seeing this as well. I am seeing it across several clients/accounts and across locations for my multi-location clients. There is a trough that begins around 4/5-7 and recovers around 4/12-14."
"Yep I am seeing the same thing. I wouldn't worry about it too much. This is fairly common with insights."
Not all are seeing this issue but many are echoing their concerns with the reporting data within Google My Business.
Are you noticing issues also? I suspect it is unrelated to the Search Console issues and Google Ads issues.
Forum discussion at Local Search Forums.