Please check any boxes that apply to you and your issue

• I use a translator application to post this issue.

• This is a crash. Please upload, Pastebin, Gist or copypaste the whole crash report along with this issue.

• This is a mod incompatibility. If I do this in vanilla Forge with only Et Futurum Requiem installed, it works normally.

• This is a code problem. Please link the probably problematic lines of code in the issue and/or explain in detail what is wrong.

Version number of Et-Futurum-Requiem (IMPORTANT)

Specify the actual version, please don't just say "latest", tell us the version number of the mod in-game, or the name the jar had when downloading it.

The latest latest version, idk.
I haven't updated to the latest yet but we are at version 2.4.0.

Describe the issue (IMPORTANT)

A list of steps to reproduce the issue may be helpful too. Screenshots could also prove beneficial for visual issues.

isSpectator is being applied to non-player entities causing crashes.
In this case it is being applied to a Zone Spell from Ars Magica 2 when a Fire Elemental is summoned.

crash-2023-01-18_17.05.59-server.txt

Mod list (OPTIONAL)

Crash reports contain the mod list to copy. Please use Pastebin or Gist if it is too large. If you don't have a crash report, open any world and hold F3 + C for 10 seconds to crash the game manually.

The Lost Era Modpack

Additional Context (OPTIONAL)

Any other info that may have been missed? If you suspect other mods to cause this issue, list them here and tell us why you suspect each of them.

Seems to be fixed already (see 03a24cf)

Please update before making bug reports