Website glitching when trying to change intervals

Have some weird issues lately trying to tweak intervals on the desktop. I’ll highlight an area to fine-tune the interval length and sometimes it just blanks out everything, I click to zoom out and it just doesn’t zoom back out but keeps showing me a blank screen and when I click the time at the bottom moves but I can’t jump back to the whole workout view

Secondly when I click on an interval to try and edit it, it doesn’t respond until I click multiple times. Sometimes I’ll click once and it works. Other times I’ll click twice and it comes up the second time. Sometimes I click twice and it comes up the first time then immediately disappears.

Sometimes I’ll try to drag and adjust intervals but instead it zooms me in on nothing and puts me into that first scenario when I can’t get out of seeing nothing

I’ll try and upload a video or something later cause I feel like I can’t explain this too well but has anyone had similar bugs? I’m on an iMac using Safari if it matters

Ok, can’t load a video so not sure how else to describe this. Here’s a photo of what it does when I try to click out of zoomed view and I have to click like a half dozen times to get back to the workout. I can’t really show the other stuff in photos

Could you please mail me the video or share it with me some other way? Tx.