Couldn't load plugin on OBS ver31.1.1

## Description

Coulnd't load plugin since OBS ver31.1.1 update
(We confirmed loading at OBS 31.0.4)

OBS logs says `file not found`

```
Module '../../obs-plugins/64bit/osi-src-link.dll' not loaded
Failed to load module file '../../obs-plugins/64bit/osi-src-link.dll', file not found
```

Note: Some other few plugins get same errors and couldn't load.


