Removing caveData (flushing the local cache) should be one of the first troubleshooting steps to take when experiencing weird behavior in CAVE. The cache lives in a folder called **caveData**, hence why this process is also referred to as removing or deleting caveData.
Then it is likely we have recently changed our production EDEX server.
There is a good chance we can recover your settings. To do so, please send a short email to [support-awips@unidata.ucar.edu](mailto:support-awips@unidata.ucar.edu) with the topic "Missing Configurations", and include the username(s) of the computer(s) you use to run CAVE.
Since the pandemic began, many users have asked if they can use X11 forwarding or ssh tunneling to remotely connect to CAVE machines. **This is not recommended or supported**, and CAVE crashes in many different ways and expresses strange behavior as well.
We highly recommend you [download the appropriate CAVE installer](install-cave.md) on your local machine, if that is an option.
If that is not an option, then the only remote access we recommend is using some type of VNC.
[**RealVNC**](https://www.realvnc.com/en/) and [**nomachine**](https://www.nomachine.com) are two options that are in use with positive outcomes. [**UltraVNC**](https://www.uvnc.com) may be another option, but may have quite a delay. There *may* also be other free or paid software available that we are not aware of.
!!! warning "It is likely that any VNC option you choose will also require some software or configuration to be set on the remote machine, and this will likely require administrative privileges."
!!! note "These screenshots may vary from your system."
!!! warning "These instructions are <i>per connection</i>, so if you use multiple connections or switch between wired and wireless connections, you'll need to do the following for each of those connections so that CAVE will always run properly."
If you encounter the error below, please see one of our solution methods for resolving:
```
CAVE's Spring container did not initialize correctly and CAVE must shut down.
```
We have found the reason for this failure is because the host machine is set to use a language other than English (ie. Spanish, French, etc).
To resolve this issue, either:
- Switch your system to English, when using CAVE
or
- Use our [Virtual Machine option](../install/install-cave/#method-1-linux-virtual-machine). This option allows your actual machine to stay in whichever language you choose, while allowing you to run CAVE in an environment set to English. Although we list this installation under the Windows OS, this can also be done on Linux.
!!! warning "The VM option has one notable drawback at the moment -- it cannot render RGB satellite products."
This problem is most commonly seen with the direct Windows installation. It can also manifest in the Mac installation, and the root of the problem is not having Python installed properly for CAVE to use the packages.
If the [Windows installation](install-cave.md#download-and-installation-instructions_2) was not completed properly, it is possible to see incorrect behavior when loading certain products. These are derived products which use the local machine to create and render the data. This creation is dependent upon python and its required packages working correctly.
The dataset will be available in the menus and product browser, but when loaded, no data is drawn on the editor, but an entry is added to the legend.
You may see an error that mentions the python package, **jep**.
Known datasets this can affect (this is not a comprehensive list):
- Install the [awips-python.pkg package found on **step 1**](https://unidata.github.io/awips2/install/install-cave/#download-and-installation-instructions_3)
Sometimes yum can get in a weird state and not know what AWIPS groups have been installed. For example if you are trying to remove AWIPS you may see an error:
```
yum groupremove "AWIPS EDEX Server"
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.dal.nexril.net
* elrepo: ftp.osuosl.org
* epel: mirrors.xmission.com
* extras: mirrors.cat.pdx.edu
* updates: mirror.mobap.edu
No environment named AWIPS EDEX Server exists
Maybe run: yum groups mark remove (see man yum)
No packages to remove from groups
```
To solve this issue, mark the group you want to remove and then try removing it again:
