Snowbird Solitaire Level 409

Was informed that a rock formation (it looked like a stack of rocks) was unlocked after the completion of Level 409.

I was not able to find the rock formation item on the "Rock" tab, or any of the other Supplies tabs.

When I played subsequent levels of Snowbird Solitaire, I saw that the "Back to Resort" button still had the yellow circled white exclamation point in the upper right corner.

Then when I returned to the resort, the "Supplies" button still had the yellow circled white exclamation point in the upper right corner.

Two items on the "Area" tab are to be unlocked at Level 413, so I wanted to see if their unlocking would clear the "new" supplies indicators (the yellow circled white exclamation points).

After I completed Level 413, I returned to the resort.

As expected, I found a yellow circled white exclamation point in the upper right corner of the "Area" tab. I also found a yellow circled white exclamation point in the upper right corner of the two red sofa items that were unlocked.

When I clicked the red circled brown "X" button just to the right of the "Supplies" sign, the "Supplies" button still had the yellow circled white exclamation point in the upper right corner.

The yellow circled white exclamation points were gone from the "Area" tab and the two red sofa items.

When I finished Level 414, the "Back to Resort" button still had the yellow circled white exclamation point in the upper right corner.

Quitting and then relaunching Snowbird Solitaire did not clear the exclamation point from the "Supplies" button.

Lastly, closing the Chrome browser and clearing the cache did not clear the exclamation point from the "Supplies" button.

On the "About Chrome" page, I found that "Google Chrome is up to date Version 85.0.4183.121 (Official Build) (64-bit)".