After updating App Lab to 0.10, I noticed the App Lab file explorer does not always reflect the files that are in the project folder. Sometimes the files/folders will show up, then simply disappear from the explorer. I workaround this (sometimes, not often enough) by restarting App Lab or by loading a different project. Also if the file/folder does not show up, the editor removes the file as well.
Thanks for your report @mvlese.
Are you using Arduino App Lab in single-board computer (SBC) mode, or in PC hosted mode?
If the latter, are you connecting the PC to the UNO Q via its USB cable, or through the Wi-Fi network?
Does the fault occur even with a simple new App? Or does it instead only occur with certain more complex Apps?
Does the fault occur in association with a specific event? For example, does it only occur during the time period immediately after you open the App in Arduino App Lab? Or does it just occur completely randomly at any time?
Can you quantify what you mean by "sometimes"? I'm not expecting a precise figure. I only want to get some idea of how rare the fault is.
I am using App Lab in PC Hosted Mode via Wi-Fi. I have an Arduino USB-C hub connected to the board. I have a 65W power supply connected to the hub. I also have the laptop connected to the hub through the other USB-C port. I have an SD card plugged into the hub. (None of my apps use the SD card.) I have a USB speaker plugged into one of the USB-A ports.
The fault seems to occur most often with a more complex app, but I have seen it happen this morning with simple apps while switching between apps experimenting.
The fault occurs randomly. "Sometimes" means about one in five tries.
This morning I removed the SD card from the hub and power-cycled the hub/board. No difference. I also removed the USB-C cable from the laptop and power-cycle. No difference.
In summary, the problems are:
1.) Some files/folders do not show up at all.
2.) The files may show up after the app is opened, but a couple seconds after that, the files/folders disappear.
I have not seen this when using version 0.8, which I am falling back to.
For "fun" I just tried this in SBC mode, still using version 0.10. I did not see the issue in SBC mode. (There was a different issue. When opening a second file, a new tab did not appear. The first tab was loaded with the contents of the second file. If I selected a different app and then came back to the original app, a second tab opened when I selected a second file. If I selected a third file, the second tab was loaded with the third file.)
Thanks for the clarification. The problem as it occurs specifically in PC hosted mode when connected to the board over the network was also encountered by an Arduino team member, and a formal bug report has been submitted to the Arduino App Lab developers.
I'll post an update here if I receive any news from them.
I apologize for any inconvenience caused by the bug.
I hope that you will be able to use the workaround of connecting to the board via the USB cable until such time as there is a true resolution.
That is a feature. When you single click a filename it opens as a preview (mine shows the tab description in italic), single click a new file and it replaces the last preview file etc. To open the file as non-preview you need to double click the file name.
I believe it is a quite common feature with modern editors, apparently saves on number tabs?
Thanks.