I have a similar delay bug with the website itself. I've not reported it because I don't use my lichess account to play actual games, only puzzles. The lichess boards will only let you post a new thread if you have games on your history, and I refuse to comply as I've played thousands of puzzles and I should have clearance, and yes that's petty, anyway...
My bug is about Puzzle Storm. When you run out of time, the GUI shows you the post game screen and it takes a fraction of a second before it pops in a "daily record" banner. This fraction of a second is slow enough for me to drag my mouse cursor over the "Failed puzzles" filter, but fast enough for me to accidentally click "Play again" as it has been pushed down the page (by the daily record div) without me perceiving it yet. Once clicked, that button resets the page to start another puzzle storm and by then I've lost the failed puzzle history, so I can't go over it anymore.
It has happened already in the hundreds of times. I can't help it, hopefully the dev one day figures it out.
My bug is about Puzzle Storm. When you run out of time, the GUI shows you the post game screen and it takes a fraction of a second before it pops in a "daily record" banner. This fraction of a second is slow enough for me to drag my mouse cursor over the "Failed puzzles" filter, but fast enough for me to accidentally click "Play again" as it has been pushed down the page (by the daily record div) without me perceiving it yet. Once clicked, that button resets the page to start another puzzle storm and by then I've lost the failed puzzle history, so I can't go over it anymore.
It has happened already in the hundreds of times. I can't help it, hopefully the dev one day figures it out.