Actions on multiple projects do not work for more than 15

[SusanRatiLane]

Describe the bug

Forum comment; https://community.appinventor.mit.edu/t/new-app-inventor-user-interface-in-open-beta/121516/

"A while ago I was struggling to export aia projects if I just clicked the select all checkbox, or selected +20 projects. By trial and error I found that selecting @ 15 projects exported OK, therefore each month, when I have a clear out, I select no more than 15 at a time, and this works OK.

Similarly, trying to delete more than 15 projects at one time from trash generates an error, and fails. Again, by only selecting 15 projects I am able to delete without error."

Affects

• Designer
• Blocks editor
• Projects Explorer
• Companion
• Compiled apps
• Buildserver
• Debugging
• Other... (please describe)

Expected behavior

Any number of selected projects should move to trash or delete, including when "Select All" is checked.

[Parth-Dave18]

can you Please Explain how to regenerate the issue?
I am new to the OpenSource and I want to solve this issue.