The Hide/Reveal Polygon Tool reveals the whole map instead of the highlighted area.

Chrome V134.06 yadda yadda. Basically the title, when using the Hide/Reveal tool it just reveals the whole map all at once, but ONLY the polygon version, as the regular rectangular version works fine oddly enough. I don't know if the map size has anything to do with it, as it is a very large map (330 W/205 H)

Hi Sanwi,  Thank you for providing the map size. It is definitely the cause here. I tested this in Jumpgate and at 235 grid squares (assuming 1.0 Cell Width) in either dimension the issue happens. 234x234 is fine while 235x234 and 234x235 are not.  I can pretty safely say you have found a limit that Roll20 has not expected someone would reach. Frankly, anything over 100x100 is not going to work so well, as the warning states when you set your page size in excess of that.  My suggestion, drop the Cell Width down to 0.5. Shrink the map and tokens etc down to half scale (ie: the new 330x205) and then drop the page size down to 330x205 grid squares.  Of course, if you'd like to report this to Roll20 I suggest using the Help Center as the Bug Report forum is primarily for community support.