Hi schaakkoning,
Usually you can remove all arrows at once just by right clicking on the board. If that was not working, you may have indeed stumbled upon a bug. See if you can recreate the situation, then click on Help in the lower left corner and Report a Bug, which will allow you to send a screenshot of the issue as well.
Best.
Hi Referendarius,
Yeah, normally that works perfectly. The thing is, it was my student who kept seeing the lines even after clicking (on either my or her side). For me, all the arrows disappeared. For her, however, they stayed. If it happens again, I'll ask her to do that.
Hi, today I had a lesson with a student. Several times I made arrows, the arrows would remain even after I had removed them. Eventually, she would see so many arrows (from previous positions), that she had to leave the class and come back to it. This happened at least 5 times in 30 minutes.
Moreover, while analyzing, several times one of us would make moves that the other wasn't able to see.
I know there have been some bug reports with the same issue that have been submitted.
Hi, today I had a lesson with a student. Several times I made arrows, the arrows would remain even after I had removed them. Eventually, she would see so many arrows (from previous positions), that she had to leave the class and come back to it. This happened at least 5 times in 30 minutes.
Moreover, while analyzing, several times one of us would make moves that the other wasn't able to see.