The audio disappear buttons disappear

I have two play buttons on my cards. Unfortunately, on some cards the second button disappears.
Instead, there is a comedy in square brackets.
The screenshot is attached.
Anki version ⁨2.1.50 (26d40c3a)⁩
Win 10


{{tts cs_CZ speed=0.8:zdanie_cz}}

Note the = after ‘speed’.

You can find the documentation for TTS replacement here.


TTS Button play problem in some with some notes.

Unfortunately, I had to downgrade to 2.1.49 where the problem does not occur.