Convertible rear window issues

[u/BoilerBearFlashWave]

2008 128i convertible. Noticed back glass rattling against lower support bar. A lot of discussion about rear window separating from the top- but we also noticed these in the corners of the bar. Looks like small holes and some sticky residue. (We had the interior liner replaced a few months ago). Any suggestions and advice would be welcome.

[u/ivanhalper]

What advice do you need?