[Bug Report] vst3/lv2 GUI buggy

[epsilonhalbe]

Describe the bug both vst3 and lv2 plugin on ardour6 (latest, self compiled), have a non functioning GUI (delay,phaser,chorus,flanger are hidden in the top left corner and some button functionality is not working: GlobalEnv, ModEnv, XY panel, LFO2, GlobalLFO, 150% and some of the dropdown menus appear "far away". This for example happens in when I click to switch between poly and legato

To Reproduce open ardour

1. Load synth plugin
2. Click on any of the buttons -> no change

Expected behavior UI should respond to button clicks and layout should be visible

Desktop (please complete the following information):

• OS: Linux Mint 19.3 and 20.1 (I upgraded to see if this would fix the issue)
• Ardour6.5.62 (built using 6.5-62-g9ba8166ae8 and GCC version Clang 10.0.0 )
• Odin Version: downloadable deb file & built locally 382505316e393390318332d6a5d8778b1aa3e9e8
• Plugin Format: VST3 / LV2

Additional context

the standalone version of odin is a bit bigger than the one in ardour, and is working without any problems

[dromer]

The lv2 in the 2.2.4 binary package (dc9e0963) seems fine over here (debian buster), although resizing between 100-150% sometimes feels a bit glitchy.