Close Captions from SRT file not appearing in VLC or other players

Hi

Close Captions made in Premiere Pro 25.1.0, exported as .SRT sidecar file.  - this on Mac Studio running Sonomo 14.2.1

SRT file named the same as the video file / in the same folder

Video file (ProRes 4444, 25fps,) has same QT timecode as SRT file.

PLaying in VLC, Track 1 appears in Subtitle list, but after selection no close captions are displayed. Have uploaded it separately as external subtitle file and this makes no difference.

The .SRT file has extra information on position and colour and I am wondering if that is causing the issue?

Or is it in the way that the captions were first created in Premiere?

An example section from SRT is below. Any pointers gratefully received.

Thanks.

Ben

83
10:05:09,840 --> 10:05:11,560
<font color=#F2F2F2FF>[Low rumbling bubbles] </font>

84
10:05:11,560 --> 10:05:13,320
<font color=#F2F2F2FF>[Fluorescent light flickering]</font>

85
10:05:13,440 --> 10:05:19,240
<font color=#F2F2F2FF>Now, you are going to sample</font>
<font color=#F2F2F2FF>some of my finest work.</font>
<font color=#F2F2F2FF>[♪] [Somber music fades away] [♪♪]</font>

86
10:05:20,480 --> 10:05:23,640
<font color=#F2F2F2FF>[Fluorescent light flickering]</font>

87
10:05:23,800 --> 10:05:26,760
<font color=#F2F2F2FF>[Bubbling water tank] </font>

88
10:05:26,880 --> 10:05:28,640
<font color=#F2F2F2FF>[Industrial light switch]</font>

89
10:05:28,640 --> 10:05:31,360
<font color=#F2F2F2FF>[Heavy electrical hum] </font>