Same issue happening with factoriopedia.

What did you do?
Scheduled research (Landfill\ quality module) and started redacting constant in circuit editor.

What happened?
After completing research caret disappeared!

What did you expect to happen instead? It might be obvious to you, but do it anyway!
It should stay.

Does it happen ...

What did you do?
Opened space platform map and clicked "Land" (Приземлиться) on Fulgora. I use Russian localization, it may be important.
What happened?
"Cancel landing" button barely visible since "Landing on Fulgora" (Приземляюсь на Фульгору) message is too long. See attachments.
What did you ...