Unable to draw many circle on any analysis type board

I doubt that this is a mouse hardware problem. It is restricted to circles (any color). Arrows are fine.
Yesterday I was able to fill an upper-right quadrant with circles (was not dreaming), and today: not.
studies and analysis explorer from main menu behave the same. Am I alone experience this?
thanks for letting me know if that is part of the restrictions related to server loads. although why not the arrows?

@dboing and I experimented and this does seem to be a problem with his hardware.

I was able to have a max of 32 circles on a given move; for example.

Not happening to me, just filled the entire board with circles.

@DoubPig Try saving that. It will only save 32. I also can fill the entire board with circles only to have all but 32 erased on saving it.

for some reason Firefox seems to handle my mouse right click up event better than chrome (or it assumes that all clicks get one if not, it add its own...) . Logitech 3 year warranty on the dot. they must optimize the factory cadence and workers' conditions to get that exact wear down schedule. I am half kidding.

they use to have those infamous lazy metal spring under the button than would end up rebound-less, after a tedious context menu user abuse (for me it was normal use).

that FF versus Chrome difference might be a fluke. Sorry for this thread, my doubt was unfounded. Hardware! but hey, max number of circles and their persistence got to be mentioned. thanks @jomega for saving the thread.

Update: not a fluke. my mouse may be tired, but in Firefox, none of the circle disappearance upon adding others happen.
i can easily draw many circles. No sign of that new behavior. And also, nowhere else on my OS (win7 ESU) do I have right button problems but on lichess boards with chrome. And it was not progressive as the days before I could make some 20 circles on same board. An autopsy of my mouse might be premature....

I wonder how 2 browsers can handle input devices so differently. Aren't they using the OS handles (or API), or have those been replaced by web technology of some kind. Why would browsers not rely on the local OS? and invent their own device interfaces? each a different flavor? naive questions I am sure.

updated chrome to 81. no change. Also the shift left clic has no problem.
But this post is about a more systematic behavior that I thought was mis-rebounds from the right button.

if I make a circle with right clic, and move the mouse one square and then press the shift key the circle mutates into an arrow. would look like the mouse rebound never came back? this is systematic, a failing mouse button does not go off that abruptly (I have had a lot of experience, and it was mostly about the left mouse button).

I use a marble mouse from logitech. i'll try my touchpad just to make sure.

CONFIRMATION: not my mouse button. the touchpad which I never used exhibits exactly the same problems: limited # of circles, and systematic mutation into arrow upon any length of time later key press on shift. That touchpad has mechanical buttons but never used, so not also suddenly worn out.

disabling touchpad (with or without reboot) does not change the right clic behavior in chrome. So probably a problem of having two pointing devices.

more weirdness, I don't make this up, not a late april's fool (from me, at least).:
right click green circles are thinner than shift left click ones (this may have always been the case, but as I document this mouse behavior in chrome, I noticed. here is a pic:



The middle circle was a righ-clic, surrounded by 2 shift left clicks. maginifying image shows difference with thickness.

Online mouse testing (chrome and Firefox), so not lichess.

I googled "mouse click online testing" and narrowed down to 2 sites, one mostly textual but instructive (about mouse, keyboard, JavaScript and web standards), and the other graphical representation but not explicit.
1) unixpapa.com/js/testmouse.html ----(old Level 0 DOM):
2) unixpapa.com/js/testmouse-2.html ----(standard Level 2 DOM addEventListener):
more info and test at:
3) unixpapa.com/js/mouse.html ----(with old pan-browser button id test --JavaScript link)
and the simpler one but more graphic
4) www.onlinemictest.com/mouse-test/

I will post a summarized copy of the results later for the 4 tests.

@dboing Your passion for discovering the truth by experimenting and research is impressive. Thanks for sharing.