Playing on WIndows 11

Relevant cards:
*Taigam, Master Opportunist
*Mirror Room / Fractured Realm
*Three Steps Ahead OR any counterspell (?)

Steps:
1. Cast Taigam
2. Cast Fractured Realm
3. Opponent counters Fractured Realm

With Taigam on the board, my second spell cast was Fractured Realm. My opponent countered that spell, and then Taigam's ability on the stack resolved, attempting to cast a copy of Fractured Realm. This spell appeared to fizzle, but on the following turn we discovered that an invisible token of Fractured Realm existed on the board, and was triggering in response to my triggered abilities. I was able to hover over the invisible token and see a broken version of the Fractured Realm card (see screenshot).

What was expected: The token of Mirror Room / Fractured Realm appears on the board visible to all players, OR, the casting of the copy of Fractured Realm fizzles.

No workaround or reproduction is available at this time.