Calendar grid view height collapse problem

So, in the old working version, the grid view displayed a grid view that looked roughly like a wall calendar – a big box containing smaller boxes for each day of the month. After updating the plugin today, the grid view exhibits a weird collapse problem. When the page initially loads, we can briefly see what looks like a grid view calendar, with events in it. But after a fraction of second, the calendar “collapses” to a tiny grid where each day is only 1 line of text high and all the events are replaced by dots. We’ve been playing with CSS for hours but can’t figure out how to force the calendar to show and actual grid view like the old version did where each day is a box big enough to see event names. Any help on this one?

https://ww.wp.xz.cn/plugins/google-calendar-events/