I had not opened or touched my TTS rules in any way, which are using Google Home Assistant for speech and VLC Thing to play a chime. My rule for TTS I'm testing with was and is speaking the name of a contact sensor opened. That was working with a pre-RM 2.5 rule and that called a private boolean to activate a door chime via VLC Thing (e.g. music player) in a RM 2.5 rule that was created prior to the 114 update.
Opening the Door Chime rule caused it to stop working. I deleted it and recreated it with the same settings, but that did not resolve the issue. Deleted the TTS rule that calls the door chime and recreated it as a RM 2.5 rule. TTS continues to work, but music player would not play my chime.
Are you by chance using a private boolean to trigger the music player? I tested trigging my door chime rule via a button, and it works. When I set it back to trigger via private boolean, as was configured prior to opening and viewing my door chime rule, it again does not function.
So perhaps private boolean is actually what has the issue (or at least in my case)? More testing needed.
[Edit] Confirmed. If I set my first rule to push a button in order to trigger my Door Chime rule, it plays the chime via VLCThing without issue. So it appears we're actually dealing with an issue with private boolean, not music player.