Crash with using Performance Tuner

We are using APT version 1.5.0.60b0ddc9 Unity 2021.3.26f1 and see a lot of crashes coming from the plugin

null pointer dereference: SIGSEGV 0x0000000000000018
#00 pc 0x2d350 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#01 pc 0x2d348 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#02 pc 0x27ae0 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#03 pc 0x3460c libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#04 pc 0x347b8 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#05 pc 0xb6668 libc.so (BuildId: 3e3c5ec517682e9d3afdceafc14d447f)
#06 pc 0x532cc libc.so (BuildId: 3e3c5ec517682e9d3afdceafc14d447f)

null pointer dereference: SIGSEGV 0x0000000000000018
#00 pc 0x2d350 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#01 pc 0x2d348 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#02 pc 0x27ae0 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#03 pc 0x3460c libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#04 pc 0x347b8 libunitytuningfork.so (BuildId: 04852f825bd5553cd874f1a06c85fd27ef52a1b5)
#05 pc 0xfb04c libc.so (BuildId: 373b3a68831a2041a671a8c53f383df5)
#06 pc 0x8e3b0 libc.so (BuildId: 373b3a68831a2041a671a8c53f383df5)

What can we do to fix it?

The report points to libunitytuningfork.so and Unity 2021.3.26f1 with APT 1.5.0.60b0ddc9; begin by reproducing the SIGSEGV under that combination and examining the reported stack. Done means the crash cause is identified and a verified fix or confirmed workaround is documented.

Written by the indexing model from the issue text.