I decided to try Studio One on something else than KDE desktop. Installed Ubuntu 24.04 from scratch, installed my plugins, set up Pipewire, installed Studio One. But when I press “Record” or switch to Edit mode, Studio One does something nasty to Wayland compositor, so it shuts down, dumps core, and I end up at login screen.
Here's what I get when I run it with WAYLAND_DEBUG=1:
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Selected graphics device: AMD Radeon Graphics (RADV RENOIR)
### Warning: Module could not be loaded: /opt/PreSonus/Studio One 6/Plugins/videoengine.so: undefined symbol: _ZN5Video11VideoEngine14createInstanceERKN4Core8UIDBytesEPv
### Warning: UCNET:Enabled UDP multicast on official port 47809 (1 sockets)
### Warning: UCNET:Local UDP port bound to 45316 (2 sockets)
### Warning: UCNET:Adding server via UDP discovery [IP removed] : tcp 60409 udp 59336 (alive event)
### Warning: UCNET:Server "Plug-in Scanner" (id = "{9FF45141-F216-4F75-AAFA-537D8727A72C}.99723") resolved at host "[IP removed]", tcp 60409 udp 59336
### Warning: UCNET:Resolving hostname localhost...
### Warning: UCNET:Connecting to localhost...
### Warning: UCNET:Removing server via UDP discovery [IP removed] : tcp 60409 udp 59336 (leave event)
### Warning: UCNET:Server "Plug-in Scanner" removed.
Gtk-Message: 08:05:23.756: GtkDialog mapped without a transient parent. This is discouraged.
### Warning: UCNET:Started listening on TCP port 44375 (2 sockets)
### Warning: UCNET:Server "Studio One/6.6.0.99237 Linux x64" registration reply received.
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### Warning: RIFF file seems to be broken - skipping!
### Warning: Failed to read Wayland events: Connection reset by peer
### Warning: Lost connection to compositor. Trying to reconnect.
X connection to :0 broken (explicit kill or server shutdown).
### Warning: Failed to connect to Wayland display.
My machine specs didn't change, so it's all in signature.
Also, Studio One now often silently crashes when just playing the arrangement. What's interesting is that it can work crash-free for quite some time when launched in terminal, but I barely get 3 minutes of playback when I start it from app menu. Where do I send core dumps (I think there may be some sensitive information)? Later today (tomorrow for US) I'll go back to KDE and see if Studio One works better in this environment.