Quest 1 is only compatible up to v0.9.8. The new update (v0.10.0) uses the new Meta SDK, which doesn't support the Quest 1. I recommend upgrading your headset if you want the new features.
for instance the passthought work for deovr and virtualdesktop . even on quest 1. with their latest version.
maybe , even with the new sdk , it's possible to make heresphere work? , maybe , by put the min firmware version to 50 (in the manifest , or anything else)
Unfortunately, I don't think there's an Unreal Engine build that supports passthrough with Oculus SDK below 50. Meta's support for Unreal Engine is much more limited than Unity.
Current Unreal Engine build I'm using is on v57. There isn't a way to manually set this lower, except for using a totally different engine build. I don't have the time to make another engine build just for Quest 1. Sorry.