I have had the same issue, all on chrome on my S8. It is a recurring problem ever since around the same time frame you describe. I was able to get most back by going to settings: accounts and back up, then backup and restore, then restore data.
I am also having a similar issue every day, mostly when first using my phone in the morning, with other links being completely shaded out and unable to use. The function eventually returns, but it is very annoying to say the least. Especially since one of the links is for my work time clock. At other times of the day, when the phone has been sitting for a while, the same thing occurs.