Dynamic lighting barrier breach

Hi folks This community has been super helpful so far and I'm confident it won't let me down this time! I had my first VTT session for my group tonight. I started with a half hour familiarisation play-time on a throw-away map that I had built, and I thought, stress-tested. A plan never survives contact with the enemy! I put a few solid shapes on the map and then used the dynamic lighting to turn them into barriers. The setting is toggled correctly on the map setting. At a few points of a circular barrier however, they players can either see through the wall (it is a solid wall, I drew it with the shape feature), or at one point move straight through the wall. There only seems to be one point on the circle they can squeeze through, but there are several portholes they can see out of. A second rectangular shape seems to be secure. I've attached screen shots to hopefully make sense of what I mean. First image is the bare bones drawing, second with the pink is the dynamic lighting barriers, and thirdly, the character has managed to get inside the solid shape, and then can see out somehow. Is this a glitch, or am I missing something? Any advice most welcome please. Thanks

Looks like a glitch to me. I can reproduce the same behavior, at least using Cmd-L. (I have not tested with a dummy account--does the player experience the same thing you do as the GM?). Firefox, Mac, Dynamic Lighting with Daylight Mode, token with vision enabled, movement restriction enabled. And here's the point where the bandit token can sneak right past the barrier: The best workaround for now is probably to make polygonal barriers rather than circular ones.

Yes. Don't use circles. Despite them being "supported" for dynamic lighting, they don't have proper collisions for blocking movement. I have an API script that fixes that (by approximating them as many-sided polygons), but that requires a Pro Subscription.