Table sticky header becomes invisible after data populating

I've met very unpleasant problem. I have a list of data with pagination. So i use infinity scroll library for data updating. The problem is when i set header sticky Table property to true - it starts flickering when the new data is arrived. I was really interesting in what is really going on here and started to explore html tree. So then i've figured out that the header obtains property visibility: hidden and the colgroup with columns sizes becomes empty after getting new data. If I am trying to load one more bunch of data, header becomes visible and colgroup gets its elements. Could anyone please explain me what the hell is going on?

Start by reproducing the issue with a sticky table header, paginated data, and the reported infinite-scroll update behavior. Inspect the table’s rendered header and colgroup during data loading; done means the header remains visible and column sizing stays populated after each update.